MSA Compliant 10GBase-BX SFP+ (U/S) - 10 Gbps Fiber SFP+ Module w/ DDM / DOM - SM SFP+ LC- 20 km (12.4 mi) - 1270nmTx/1330nmRx. 10GBase-BX. transceiver adds reliable 10 GbE connections over Fiber - Lifetime Warranty on all StarTech.com. SFP+ modules - Pairs with SFP-10GB-BX-D-20-ST- Maximum Transfer Distance of 20 km (12.4 mi) - SFP+ transceiver module complies with MSA industry standards - LC Fiber SFP+ has a low power consumption of Low power consumption - Copper SFP+ module uses a cost-effective cabling alternative to fiber - Hot swappable with fiber optic modules - MTBF: 646,156,559 hours.