Owerview The Passive Direct attach copper cables provide highly reliable communication links with superior bit error rate (BER) performance. These copper cables are designed as a cost-effective and lower power alternative to optical cable assemblies for short length interconnects between active network equipment. Hot Pluggable QSFP+ - QSFP+ form factor Direct Attached Copper Cables Low power consumption and low crosstalk https://www.dell.com/en-us/work/shop/dell-networking-cable-qsfp-to-qsfp-40gbe-passive-copper-direct-attach-cable-1-meter-kit/apd/470-aavr/networking Type: 40GBase direct attach cable Technology: Twinaxial Features: Passive cable Length: 3.3 ft Connector: QSFP+ - male Connector (Second End): QSFP+ - male Compatibility This product is compatible with the following systems: Dell EMC Networking N2200-ON Dell EMC PowerSwitch Z9264F-ON Dell EMC PowerSwitch Z9332F-ON Dell EMC PowerSwitch Z9432F-ON Dell Networking N3132PX-ON Dell Networking S4112-ON Dell Networking S4128 Dell Networking S4148 Dell Networking S4148U Dell Networking S5212F-ON Dell Networking S5224F-ON OptiPlex GX260 MT PowerEdge C4140 PowerEdge C6420 PowerEdge FC640 PowerEdge M640 PowerEdge M640 VRTX PowerEdge R240 PowerEdge R340 PowerEdge R440 PowerEdge R540 PowerEdge R640 PowerEdge R6415 PowerEdge R740 PowerEdge R740XD PowerEdge R740xd2 PowerEdge R7415 PowerEdge R7425 PowerEdge R7515 PowerEdge R7525 PowerEdge R840 PowerEdge R940 PowerEdge R940xa PowerEdge T140 PowerEdge T340 PowerEdge T440 PowerEdge T640 PowerEdge XR2 PowerVault NX440.