HP is launching four rack-mount servers for small and medium-sized businesses. The 1U HP ProLiant DL160 G5 and 2U ProLiant DL 180 G5 are sister products to the enterprise-level DL360 and the DL380, according to HP's server and storage VP Paul Miller. These are Intel-powered boxes, with the accompanying DL165 G5 and DL185 G5 housing AMD chips.

According to HP, the servers include tools that guide users through system configuration for a fast installation.

The DL160 for small businesses costs from £699 and houses a pair of quad-Core 5400 sequence Xeon processors, up to 32GB of RAM, and an internal storage capacity of up to 3.0TB, with four 750GB hot-plug SATA, 3.5-inch drives. It includes two PCI-Express x16 2.0 slots and HP's Lights Out 100i Advanced and Select remote management boards. HP said the management board enables users to manage entry-level ProLiant G5 servers remotely, install or update software over the Internet or the LAN, and monitor hardware health such as fan, temperature and power supplies.

The DL185, aimed at larger organisations, costs from £1,025 and includes up to two dual-core AMD Opteron 2200 sequence processors, up to 32GB of RAM, and internal storage of 9TB maximum provided by a dozen 3.5-inch SATA drives, although you can add two more with an optional expansion kit. It also includes three PCI-E slots, optional redundant power supplies, and HP's remote management boards.

Typical configurations for the systems include powering Citrix-based remote desktops and Exchange servers, reckoned Miller.

"These small businesses still don't have a datacentre but they are starting to build wiring closets with racks," said Miller. "These products are aimed at those who want the reliability that racks can offer. If customers have five or more servers, then Shorty [the company's small blade chassis] is the way to go."

The big difference between these and the larger products is expansion, according to Miller. He said that smaller customers don't need all the capacity, resilience and slots that enterprise customers do.

The HP ProLiant DL160 G5 and DL185 G5 are currently available. The DL180 G5 and DL165 G5 are expected to be available within 90 days, according to HP.