ATGBICS Extreme Enterasys compatible 100G-DACP-QSFP4SFP1M 100GBase-CU QSFP28 to 4 SFP28 Passive Direct Attach Cable operates over Passive Copper with a cable length of 1m. This product operates within a commercial temperature range. It is suitable for short reach connection between 100G QSFP28 and 25G SFP28 enabled host adapters, switches, and servers in 100G interconnecting networking applications and provides a cost-efficient way to connect hardware within close proximity racks. This breakout cable connects to 1 x 100G QSFP28 port on one end and to 4 x 25G SFP28 ports on the other end. Our product meets the specification of Extreme Enterasys 100G-DACP-QSFP4SFP1M and we proudly offer a compatibility guarantee and limited lifetime warranty. Our rigorously tested products record a unique traceable serial number and are fully compliant with all MSA (Multi-Source Agreement) and IEEE standards & protocols.