Cisco switch compatible...Comparable to GLC-SX-MMD= Compliant with SFP Multi-Source Agreement (MSA) standards 300 meter transmission distance using 62.5/125 MMF cabling 500 meter transmission distance using 50/125 MMF cabling The N286-01GSX-MDLC SFP (mini-GBIC) transceiver module is designed for use with Cisco networking equipment, and is functionally equivalent to Cisco part number GLC-SX-MMD=. This transceiver is manufactured to meet or exceed the specifications of the original Cisco unit, and to comply with Multi Source Agreement (MSA) standards. Performance Wavelength 850 nm Maximum transfer distance 550 m SFP transceiver standard SX Fiber optic connector LC Multi-mode fiber (MMF) supported Yes Interface type SFP Maximum data transfer rate 1000 Mbit/s SFP transceiver type Fiber optic Certificates Compliance certificates RoHS Operational conditions Operating relative humidity (H-H) 5 - 95% Weight & dimensions Weight 20 g Height 44.4 mm Depth 330.2 mm Width 482.6 mm Packaging data Pa