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.

Cisco switch compatible...Comparable to GLC-SX-MMD=
Compliant with SFP Multi-Source Agreement (MSA) standards
1000Base-SX transceiver supports data transfer rates up to 1.25Gbps
300 meter transmission distance using 62.5/125 Multimode cabling
500 meter transmission distance using 50/125 Multimode cabling
850nm wavelength VCSEL Laser
Duplex LC Connector
Electrical interface compliant with SFF-8431
Supports Digital Diagnostic Monitoring (DDM)
Hot-pluggable