Cisco GLC-SX-MMD 1000BASE-SX SFP transceiver module

The GLC-SX-MMD Small Form-Factor Pluggable MMF 850 nm Transceiver from Cisco is a Gigabit interface converter that links your switches and routers to the network.
The hot-swappable input/output device plugs into a Gigabit Ethernet port or slot.
It is compatible with the IEEE 802.3z 1000BASE-SX standard, operates on legacy 50μm multimode fiber
links up to 550m on 62.5μm Fiber Distributed Data Interface (FDDI)-grade multimode fiber links up to 220m
up to 1km over laser-optimized 50μm multimode fiber cable.

Specification

Ethernet Standards	IEEE 802.3z, IEEE 802.3ah
Networking Technology	1000BASE-SX
Transmit Power	-9.5 to -3 dBm
Receive Power	-17 to 0 dBm
Wavelength	770 to 860 nm
Maximum Networking Distance	1804′ / 550 m
Maximum Data Rate	1 Gb/s
Mode	Multi-Mode
Operating Temperature	23 to 185°F / -5 to 85°C
Dimensions (L x W x H)	2.2 x 0.5 x 0.3″ / 55.9 x 12.7 x 7.6 mm
Weight	2.6 oz / 73.7 g