This is the HPE Riser 1U 2 x16 BTF (Bay-Through Fan) designed for select HPE ProLiant servers. It provides expansion slots for PCIe devices, allowing for increased I/O capabilities within the server's 1U chassis. The BTF design integrates fans for enhanced thermal management of the connected peripherals.
P56497-001 - Hpe RISER 1U 2 X16 BTF