The SFP1GBX10DES is a Dell EMC SFP-1G-BX10-D compatible downstream fiber SFP transceiver which pairs with StarTech.SFP1GBX10UES. They are designed, programmed and tested to work with 1000Base-BX10 compatible Dell EMC switches and routers. The SFP transceiver module supports a maximum distance of up to 10 km (6.2 mi) and delivers dependable 1 GbE connectivity over fiber cabling. FeaturesMaximum transfer distance of 10 km (62 mi) - SFP (Mini-GBIC) meets or exceeds OEM specificationsSFP transceiver module complies with MSA industry standards - 1000Base-BX10 transceiver has low power consumption 13WHot-swappable with other fiber optic modules - Single Mode connector with Digital Diagnostic Monitoring (DDM)This SFP fiber module is hot-swappable, making upgrades and replacements seamless by minimizing network disruptionsSpecificationsWave Length: 1490nmTx/1310nmRxType: Single Mode FiberConnection Type: LC ConnectorMaximum Transfer Distance: 10 km (6.2 mi)MTBF: 3,713,222 hoursPower Consumption: 1.3WDDM: YesWeight: 0.1 lbs