Adds 2 GB RAM to your server (Maximum: 16 GB).

With this upgrade, your server will receive a 1 Gbit/s uplink (=1000 Mbit/s) instead of the regular 100 Mbit/s port. Set new standards regarding the transfer speed of your server and choose the 1 Gbit/s port! Your server will still have unlimited traffic, of course!

By choosing this upgrade your server is being connected to a 1 Gbit/s (=1000 Mbit/s) dedicated switchport (non-shared) and 500 Mbit/s of bandwidth are reserved only for you. You are able to use the full 500 Mbit/s with both your upstream and your downstream - 24/7 without limitations, no port capping, etc. We do guarantee this bandwidth allocation to you exclusively, thus, you don't share this bandwidth with any other server. Even if you should use the whole bandwidth all the time, we will not throttle your serverport!
This offer includes a free upgrade to a physical 1 Gbit/s port if your server does not already have one.

By choosing this upgrade your server is being connected to a 1 Gbit/s (=1000 Mbit/s) dedicated switchport (non-shared) which reserves the whole bandwidth volume of 1 Gbit/s only for you. You are able to use the full 1 Gbit/s with both your upstream and your downstream - 24/7 without limitations, no port capping, etc. We do guarantee this bandwidth allocation to you exclusively, thus, you don't share this bandwidth with any other server. Even if you should use the whole bandwidth all the time, we will not throttle your serverport!
This offer includes a free upgrade to a physical 1 Gbit/s port if your server does not already have one.

Don't take a risk: This upgrade provides a high quality hardware firewall with pfSense. pfSense is generally considered to be the best open source firewall there is.
Your server will be be connected to it exclusively and you will receive all login details so you can configure the device just like you want. To perform the configuration, you can either use a console or a comfortable web interface.
Other than proprietary firewalls, the pfSense does not have artificial constraints on the maximum number of allowed VPN users, etc. Instead, you can create and use as many as you want.

Better GPU required? Simply add the GeForce GT 640 2GB to your server.

Better GPU required? Simply add the GeForce GT 740 2GB to your server.

Better GPU required? Simply add the GeForce GTX 750 Ti 2GB to your server.

This upgrade will add an additional 400 GB brand name hard disk to your server. This is a S-ATA disk.

This upgrade will add an additional 1000 GB brand name hard disk to your server. This is a S-ATA disk.

This upgrade will add an additional 2000 GB brand name hard disk to your server. This is a S-ATA disk.

This upgrade will add an additional 3000 GB brand name hard disk to your server. This is a S-ATA disk.

This upgrade will add an additional 4000 GB brand name hard disk to your server. This is a S-ATA disk.

This upgrade will add an additional 6000 GB brand name hard disk to your server. This is a high quality S-ATA disk designated for 24/7 use.

This upgrade will add an additional 12000 GB brand name hard disk to your server. This is a high quality S-ATA disk designated for 24/7 use.

This upgrade will add an Intel or Kingston SSD to your server. SSDs represent a storage technology which - compared to usual mechanical hard disks - offers extremely improved read/write performance as well as higher transfer rates. For applications such as databases, SSDs can create massive performance gains as compared to standard HDDs.
If you choose a SSD upgrade, we will install the operating system on the SSD since this maximizes the performance boost. If you do not want the OS installed on the SSD, please use the field for special requests during the order process to tell us where the OS should be installed.

A Samsung or Crucial SSD will be built into your server.
Samsung and Crucial SSDs represent the performance pinnacle of the SSD market.

The SSD is connected via S-ATA 6 Gbit/s, of course, if the mainboard allows it (all X, Dual Xeon and 10-Core servers support S-ATA 6 Gbit/s).
If you choose a SSD upgrade, we will install the operating system on the SSD since this maximizes the performance boost. If you do not want the OS installed on the SSD, please use the field for special requests during the order process to tell us where the OS should be installed.

A Samsung or Crucial SSD will be built into your server.
Samsung and Crucial SSDs represent the performance pinnacle of the SSD market.

The SSD is connected via S-ATA 6 Gbit/s, of course, if the mainboard allows it (all X, Dual Xeon and 10-Core servers support S-ATA 6 Gbit/s).
If you choose a SSD upgrade, we will install the operating system on the SSD since this maximizes the performance boost. If you do not want the OS installed on the SSD, please use the field for special requests during the order process to tell us where the OS should be installed.

A Samsung or Crucial SSD will be built into your server.
Samsung and Crucial SSDs represent the performance pinnacle of the SSD market.

The SSD is connected via S-ATA 6 Gbit/s, of course, if the mainboard allows it (all X, Dual Xeon and 10-Core servers support S-ATA 6 Gbit/s).
If you choose a SSD upgrade, we will install the operating system on the SSD since this maximizes the performance boost. If you do not want the OS installed on the SSD, please use the field for special requests during the order process to tell us where the OS should be installed.

A Samsung or Crucial SSD will be built into your server.
Samsung and Crucial SSDs represent the performance pinnacle of the SSD market.

The SSD is connected via S-ATA 6 Gbit/s, of course, if the mainboard allows it (all X, Dual Xeon and 10-Core servers support S-ATA 6 Gbit/s).
If you choose a SSD upgrade, we will install the operating system on the SSD since this maximizes the performance boost. If you do not want the OS installed on the SSD, please use the field for special requests during the order process to tell us where the OS should be installed.

With this upgrade, your server will be equipped with an Intel 750 Series SSD with 400 GB of space. The Intel 750 Series makes use of the new NVM Express technology and is not connected via a S-ATA cable but via PCIe. Regular SSDs already outperform HDDs massively. The Intel 750 Series ups the ante even more and achieves benchmark results two to five times as high as a standard SSD. If you want the maximum I/O possible for your server, there is only one choice: The Intel 750 Series SSD.
Due to its unique NVM Express interface, the Intel 750 Series SSD cannot be used as the first boot device or OS device.

With this upgrade, your server will be equipped with an Intel 900P SSD with 280 GB of space. The Intel 900P makes use of the new NVM Express technology and is not connected via a S-ATA cable but via PCIe. Regular SSDs already outperform HDDs massively. The Intel 900P is so fast that it cannot be compared to SSDs anymore, its performance is rather reminiscent of RAM. If you want the maximum I/O possible for your server, the Intel 900P is your choice.
Due to its unique NVM Express interface, the Intel 900P SSD cannot be used as the first boot device or OS device.

This SSD is not currently offered in our US location.

With this upgrade, your server will be equipped with an Intel 900P SSD with 480 GB of space. The Intel 900P makes use of the new NVM Express technology and is not connected via a S-ATA cable but via PCIe. Regular SSDs already outperform HDDs massively. The Intel 900P is so fast that it cannot be compared to SSDs anymore, its performance is rather reminiscent of RAM. If you want the maximum I/O possible for your server, the Intel 900P is your choice.
Due to its unique NVM Express interface, the Intel 900P SSD cannot be used as the first boot device or OS device.

This SSD is not currently offered in our US location.

With this upgrade your server will receive four 1000 GB HDDs which will be connected to a high quality hardware RAID controller, configured as a RAID 10 array. These are 24/7-HDDs which fit perfectly for this type of usage.

With this upgrade your server will receive four 2000 GB HDDs which will be connected to a high quality hardware RAID controller, configured as a RAID 10 array. These are 24/7-HDDs which fit perfectly for this type of usage.

With this upgrade your server will receive four 3000 GB HDDs which will be connected to a high quality hardware RAID controller, configured as a RAID 10 array. These are 24/7-HDDs which fit perfectly for this type of usage.

With this upgrade your server will receive four 4000 GB HDDs which will be connected to a high quality hardware RAID controller, configured as a RAID 10 array. These are 24/7-HDDs which fit perfectly for this type of usage.

With this upgrade your server will receive four 6000 GB HDDs which will be connected to a high quality hardware RAID controller, configured as a RAID 10 array. These are 24/7-HDDs which fit perfectly for this type of usage.

With this upgrade your server will receive four 12000 GB HDDs which will be connected to a high quality hardware RAID controller, configured as a RAID 10 array. These are 24/7-HDDs which fit perfectly for this type of usage.

With this upgrade, your server's disk space will be set up as software RAID 1. RAID 1 stands for the concept of "mirroring", which means that all data is stored on a second hard disk exactly like on the first . The advantage of RAID 1 is that data can be read faster and that, in case one hard disk fails, the system keeps working without loss of any data.

For RAID 1, one needs two identical hard disks. If you are ordering a server which has only one HD or two HDs which do not share the same capacity, you will need to order an additional HD with the same size as an upgrade. If you, for example, order a server with one 250 GB HD and would like to use this server with RAID 1, you will also need to order the upgrade for one additional 250 GB HD.

With this upgrade, your server's disk space will be set up as hardware RAID 1. We only use high quality controllers from 3Ware or Adaptec. Hardware RAID has an even greater stability and performance than software RAID.

RAID 1 stands for the concept of "mirroring", which means that all data is stored on a second hard disk exactly like on the first . The advantage of RAID 1 is that data can be read faster and that, in case one hard disk fails, the system keeps working without loss of any data.

For RAID 1, one needs two identical hard disks. If you are ordering a server which has only one HD or two HDs which do not share the same capacity, you will need to order an additional HD with the same size as an upgrade. If you, for example, order a server with one 250 GB HD and would like to use this server with RAID 1, you will also need to order the upgrade for one additional 250 GB HD.

Choose this upgrade to equip your RAID controller with a BBU. This will enable you to activate the write cache of the RAID controller. The write cache drastically improves the I/O rates of the RAID array and is recommended for high performance applications.
Furthermore, this upgrade gives you the choice whether you want a RAID 10, 5 or 6 with your controller. If you would like us to configure your server with a RAID 5 or 6, please send us a short e-mail after you have placed your order so that we know about your choice. Otherwise, we will configure a RAID 10.
Please select this upgrade only in conjunction with one of the RAID 10 upgrades.

Please select the hard disk on which the operating system should be installed.

This option will upgrade your operating system to Windows Server 2016 Standard Edition, which then will be installed instead of a Linux-System.

Windows Server 2016 is a very secure but nevertheless easy-to-use operating system. It comes with Remote Desktop, a feature which will allow you to administer your entire server on a graphical interface just like your desktop.

As the newest Windows OS, Windows Server 2016 comes with the latest software and several new features and improvements, especially with regard to networking and virtualization.

This option will upgrade your operating system to Windows Server 2012 Standard Edition, which then will be installed instead of a Linux-System. You will receive the newest version which is called "R2".

Windows Server 2012 is a very secure but nevertheless easy-to-use operating system. It comes with Remote Desktop, a feature which will allow you to administer your entire server on a graphical interface just like your desktop.

This version allows you to use all RAM that is available physically, there is no artificial RAM limitation.

This option will upgrade your server with the cPanel Control Panel, which offers nigh endless possibilities.

cPanel is considered to be the top control panel, nearly everything can be administered easily via your browser with cPanel.

Please increase or reduce the maximum number of accounts you want to create in cPanel by clicking on "+" or "-" on the right hand side. The monthly fee for cPanel (displayed on the right hand side as well) changes automatically according to the number of accounts you choose.

Feel free to visit our tutorials section which offers a small insight on the countless features cPanel offers.

cPanel has a contract period of only one month, thus, it can be cancelled monthly!

Plesk Obsidian is being offered in three different editions, which allows you to choose the version that fits your requirements perfectly. This upgrade is the "Web Host Edition". With this edition, you can host an unlimited number of domains on your server. There is no limitation coming from Plesk whatsoever.
The Web Host Edition is the largest, most powerful of the three editions - you cannot go wrong with it, since it comes with the entire feature set, ranging from the reseller management to the security core features up to automatic outbound spam protection.
During the first month of use there is no monthly fee for this Plesk upgrade.

Plesk Obsidian is being offered in three different editions, which allows you to choose the version that fits your requirements perfectly. This upgrade is the "Web Pro Edition". With this edition, you can host up to 30 domains on your server.
The Web Pro Edition delivers an extremely extensive feature set at a very attractive price. Apart from the reseller management, you can use all features that Plesk has to offer.
During the first month of use there is no monthly fee for this Plesk upgrade.

Plesk Obsidian is being offered in three different editions, which allows you to choose the version that fits your requirements perfectly. This upgrade is the "Web Admin Edition". With this edition, you can host up to 10 domains on your server.
The Web Admin Edition is targeted at users who are administrating only sites of their own on their server. At an extremely low price, you can make use of all features that are making Plesk such a great piece of software. The only exceptions are features which are required for hosting sites that do not belong to you as well as the Wordpress toolkit and the developer pack.
During the first month of use there is no monthly fee for this Plesk upgrade.

This option will upgrade your server with the Webmin control panel.

Webmin is one of the few control panels which is completely free. While it does not offer as comfortable functions for administrating web-accounts as commercial control panels do, it still simplifies the administration of your server a lot (and only needs very few resources to do so).

This upgrade is for Linux only.

LAMP stands for 'Linux, Apache, MySQL and PHP'. With this free upgrade, we will preinstall your server with Apache, PHP, MySQL and phpMyAdmin. These services are required in almost every webserver setup and with this upgrade, you save the time to set everything up by yourself. So, once you receive your login details, you can start using your server right away!
This upgrade is not a 'panel' in the conventional sense, but rather a collection of popular software.
The services will be installed via the package manager, thus will be the newest version available in the repository of the OS you choose. This also makes it easy for you to keep them up to date as new versions are released.

If you select this upgrade, we will install the Webmin control panel and Apache with PHP and MySQL.

Webmin is one of the few control panels which is completely free. While it does not offer as comfortable functions for administrating web-accounts as commercial control panels do, it still simplifies the administration of your server a lot (and only needs very few resources to do so).

LAMP stands for 'Linux, Apache, MySQL and PHP'. With this free upgrade, we will preinstall your server with Apache, PHP, MySQL and phpMyAdmin. These services are required in almost every webserver setup and with this upgrade, you save the time to set everything up by yourself. So, once you receive your login details, you can start using your server right away!

This Add-On will add an additional IPv4-address to your server.

Per default, each dedicated server at Contabo comes with a /64 IPv6 network. When ordering this upgrade, you will receive an additional /56 IPv6 network, which can be broken down into 256 /64 subnets. This upgrade is geared towards experts who use their dedicated server for virtualization and want to equip their virtual machines with individual /64 networks.

This upgrade is only available for dedicated and colocated servers, not for VPS.

This upgrade provides you with a KVM-over-IP device which will be connected to your server and will enable you to control it with real view of the screen and real mouse-movement as well as keyboard-strokes over the Internet!

Get some help with your server.

Just let us know what the technical tasks you would like us to perform (including one time and recurring tasks). The price of this upgrade includes 2 hours of technical support per month. Should one of your tasks take longer, we will contact you immediately. Then you can decide if it should be billed separately or its scope should be limited.

Please find below a list of sample server management tasks you can assign to our technicians upon ordering this upgrade:

System and hardware optimization
Software installation and configuration
Implementing security patches
Kernel upgrades
Emergency problem resolution
Ongoing OS and control panel updates
Setting up a backup routine

All common Linux and Windows Operating systems are supported.

This Add-On provides you with an individual login-area with various monitoring features (and, if you wish, automatic alert messages) for your server. It includes:
- bandwidth monitoring of your server, monitored directly at our switch
- downtime monitoring,
- monitoring of various services like Apache, FTP, etc. (more available)
- automatic alert messages per e-mail or SMS (50 SMS per month included, further SMS available per order) about downtimes

You need reaction times within few minutes if problems arise - no matter if during the day, at night, or even on weekends and holidays?
Then, the high-quality upgrade 'Emergency Support' is the right choice for you. It includes:
- Guaranteed reaction and solving attempt (within the normal remote hands costs) within max. 60 minutes, at any day or night time (in case of an emergency at night time a special phone number is provided). Also on weekends and holidays.
- preferred treatment in comparison to other requests in the waiting queue
- can be used for up to five servers

Every customer is king with us, even without this upgrade. With this upgrade, you are emperor.

Can't wait for your server? Pick this Add-On and get a fast track for your server assembly.

Please note that we still need to receive your payment first, so consider using an instant payment method like PayPal or Skrill, to get your server faster.

With this Add-On your server will be assembled with the highest priority, but keep in mind that some rare hardware configuration may take longer to assembly.

With this upgrade you receive a SSL certificate signed by a certificate authority (CA). It will enable you to run your website/online store/forum/etc. via https without having to worry about annoying browser warnings.
SSL certificates are valid for 12 months and must be renewed after this period of time. Therefore, this certificate is valid for 12 months.
The certificate supports the domain names "www.yourdomain.com" as well as "yourdomain.com". Should you require https support for subdomains, please select the wildcard certificate instead.
After the order, our technicians will get in touch with you to discuss details regarding the certificate.

With this upgrade you receive a wildcard SSL certificate signed by a certificate authority (CA). It will enable you to run your website/online store/forum/etc. via https without having to worry about annoying browser warnings.
SSL certificates are valid for 12 months and must be renewed after this period of time. Therefore, this certificate is valid for 12 months.
Since this is a wildcard certificate, it supports "yourdomain.com" as well as any subdomain possible, such as "www.yourdomain.com", "backend.yourdomain.com", "forum.yourdomain.com", etc..
After the order, our technicians will get in touch with you to discuss details regarding the certificate.

With this upgrade you receive a SSL certificate signed by a certificate authority (CA). It will enable you to run your website/online store/forum/etc. via https without having to worry about annoying browser warnings.
SSL certificates are valid for 24 months and must be renewed after this period of time. Therefore, this certificate is valid for 24 months.
The certificate supports the domain names "www.yourdomain.com" as well as "yourdomain.com". Should you require https support for subdomains, please select the wildcard certificate instead.
After the order, our technicians will get in touch with you to discuss details regarding the certificate.

With this upgrade you receive a wildcard SSL certificate signed by a certificate authority (CA). It will enable you to run your website/online store/forum/etc. via https without having to worry about annoying browser warnings.
SSL certificates are valid for 24 months and must be renewed after this period of time. Therefore, this certificate is valid for 24 months.
Since this is a wildcard certificate, it supports "yourdomain.com" as well as any subdomain possible, such as "www.yourdomain.com", "backend.yourdomain.com", "forum.yourdomain.com", etc..
After the order, our technicians will get in touch with you to discuss details regarding the certificate.

Take advantage of our specialized, exclusive backup server with its expensive RAID 6 array to backup your files and databases. With this upgrade, you will receive an account which allows your server to access our backup server via FTP or FTPS (explicit), over the internal network. There is no limit for the size of individual files and the number of files. The traffic is internal and, of course, unlimited.

You can change the PTR entry in Contabo Customer Panel.

If you don't want us to set a special PTR entry, just leave this field blank. We will set the default entry in this case.