ProLiant

ProLiant is a brand of server computers that was originally developed and marketed by Compaq. After Compaq merged with Hewlett-Packard (HP), HP retired its former 'Netserver' brand in favor of the ProLiant brand. The brand is currently marketed by Hewlett Packard Enterprise. HPE ProLiant systems led the x86 server market in terms of units and revenue during first quarter of 2010

ML server models are tower-based. They aim towards maximum expandability.

DL server models are rack-based. They aim towards a balance between density and computing power.

SL server models are rack-based. These models are mostly used in data centers and environments where a maximum of computing power is desired.

BL server models are enclosure-based. They are made specially for use in a blade enclosure and cannot be used without such. Blade systems aim towards maximum density and manageability at limited rack space.

ProLiant servers are separated into four main product lines - ML, DL, BL, and SL - which generally denote form factor. The ProLiant ML line comprises tower-based servers (convertible to rack mount) with capacity for internal expansion of disks and interconnects, while the DL line comprises general purpose rack mount servers. The BL line comprises blade servers which fit within the HP BladeSystem, and the SL line comprises dense rack mount servers for scale out environments. The MicroServer product line addresses small and home businesses.

ProLiant servers are also split into several series which denote processor configuration. The 100, 200, 300 and 400 series comprise single and dual socket capable systems, the 500 and 600 series comprise quad socket capable systems, and the 700 and 900 series comprises eight socket capable systems. The 900 series also includes eight sockets, supporting up to 80 CPU cores and up to 4 TB of RAM.

Models with a '0' in the last digit use Intel processors while models with a '5' in the last digit use AMD processors.

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