3U rack servers provide a great deal of power while maintaining a relatively small profile. In addition, the size increase from slim-profile 1U and 2U servers allow for plenty of extra storage and input options.

3U server cabinets are available in a wide variety of configurations,, the most common being a traditional all-in-one server enclosure that keeps all of your processors and storage units in one 3-unit rack server. Additional configurations include a 3U rack server that holds multiple blade servers, and a RAID cluster that combines the power of several servers in one 3U rackmount server.

3U server cabinets come as either pre-built or customized units, and there many different 3U rack server manufacturers and distributors. As a result, when shopping for a 3U rackmount server, you must choose your best option from:

1. Pre-built 3U rack servers from traditional computer manufacturers.

2. A custom 3U rack mount server built from the ground up to your specifications.

3. A pre-built 3 unit rack server from a third party retailer, with customized add-ons.

Action Steps
The best contacts and resources to help you get it done

Look for a pre-built 3-unit rackmount server

The easiest solution, if you can find one that fits your network, is to find a pre-built 3U rackmount server. Pre-built servers are generally produced by traditional computer manufacturers, and take most of the guesswork out of configuring your new server. With a pre-built solution, your server will arrive ready to plug in and use. In addition, by buying direct, you will receive great support and warranty plans from the manufacturer.

I recommend: MPC has a great 3U rack server that can be configured with additional options to suit your needs. For Mac users, Apple offers the Promise RAID, a 3U storage server that fully integrates with Mac OSX.

Determine whether a custom 3U rack server is your best option

For those of you who have more specific requirements for their new server, a custom-built 3-unit rack server will likely be your best option. When you build a custom server, you get to work in conjunction with your manufacturer to have a server that is tailored to your network's needs. Having a customized server will prolong the need for expansion or changes.

I recommend: FreedomTechnologies is one of the most well-known custom 3U rackmount server providers, and offers a great solution to build your server from scratch. Aberdeen is another reputable company that offers several custom options for a 3U rack server.

Comparison shop for 3U rack servers from third-party retailers

Your final option is to do some comparison shopping for 3U rack servers from a reputable retailer. Most dealers sell a wide variety of server options, which can be configured to your standards. Make sure you choose a retailer that will give you technical support, as well as a solid warranty.

I recommend: TigerDirect and PC Connection are reputable 3U rack server vendors with a diverse selection of customizable 3U rack servers.

Tips & Tactics

Helpful advice for making the most of this Guide

• •  When you're looking to buy a 3U rackmount server, make sure you know exactly how much power and storage your network needs. Then, decide whether a pre-built or custom 3U rack server is your best option.