This is an HP NC365T 4-port Ethernet server adapter. Condition is open box – meaning it's basically new, may have been tested or pulled from a system, but shows no wear. It might not be in sealed retail packaging, but includes the original card and likely accessories. Part numbers include 593722-B21, 593743-001, and 593720-001. It's a PCI network card with four Gigabit Ethernet ports, great for servers, workstations, or networking setups where you need multiple wired connections. Compatible with many HP and other brand systems. Ideal for virtualization, load balancing, or just adding more network ports to a PC. If you're building a home server, a pfSense router, or need reliable multi-port networking, this is a solid, professional-grade card at a good price. Works right out of the box.