SPS-FAN 12V DISCRETE/UMA PROONEG4

HP L31900-001 is a replacement cooling fan intended for the discrete/UMA ProOne system configuration. It is listed as an SPS fan and is identified as a CPU thermal cooling fan, making its role clear: to provide cooling within the computer.

The product name specifies 12V operation. Its designation ties it to the discrete/UMA ProOne configuration, so it is a specific service part rather than a general-purpose case fan. The listing identifies it by the exact part number L31900-001.