The NTHW49AG Nortel Networks Passport 15000 4-port GB Ethernet FP is a high-quality switch module designed for enterprise networking setups. It features 20+4 pin connectors and is compatible with Cisco products. With 24 network ports equipped with SFP modules, this unit offers reliable and fast connectivity for computers, servers, and other networking devices. Made in the United States, this unit is a valuable addition to any modern networking infrastructure.