Computer servers for business or industrial usage. Typically these systems have redundant components, extra upgrade capacity, high performance characteristics, hot-swappable components (such as SCSI hard drives and power supplies) and optional rack mountability.
For example:
Dell PowerEdge Servers
HP Proliant Servers
Compaq Proliant Servers
IBM Netfinity Servers
IBM eServer xSeries Servers
Dell Original RJ0R4 SFF Small Form Factor 2.5” Tray used for
Serial Attached SCSI SAS and SATA hard drives. This tray is compatible with
these Dell PowerEdge Servers and PowerVault Storage arrays.