This item, 538696-B21, is the HPE option part number for the product described as NC375T PCI Express Quad Port Gigabit Server Adapter. 

HPE Option Part #: 538696-B21

HPE Spare Part #: 539931-001

HPE Assembly Part #: n/a

In today's resource constrained environments, there is a predominant need to simplify infrastructure, improve manageability, optimize network performance and lower the cost of computing. The NC375T helps achieve performance scalability for consolidated server environments at an optimum price. NC375T offers four 10/100/1000T Gigabit Ethernet ports on a single card, saving valuable server I/O slots for other purposes. The NC375T is a low-profile card with both full height and half height brackets included in the kit and its x4 PCI Express interface is compatible with x4, x8, and x16 PCI slots.

All HP ProLiant networking options undergo vigorous testing to ensure full compatibility with ProLiant Servers to meet exacting HP quality standards. The NC375T provides full driver support on a wide variety of ProLiant servers. The adapter ships with teaming drivers for all major operating systems, teaming utilities, IPv6 packet transmit and receive support (excluding all offload capabilities) and support for management tools like HP SIM and HP SmartStart software.