Auction Information:Selling two brand new GLC-SX-MM I opened the packaging to verify that they worked and I missed placed the box in doing so, so you get the two GLC-SX-MM's in the orginal static bags.
Product Information:

The industry-standard Cisco Small Form-factor Pluggable (SFP) Gigabit Interface Converter is a hot-swappable input/output device that plugs into a Gigabit Ethernet port or slot, linking the port with the network. The 1000BASE-SX SFP is compatible with the IEEE 802.3z 1000BASE-SX standard and operates on 50 micrometer multimode fiber links up to 550 m and on 62.5 micrometer FDDI-grade multimode fibers up to 220 m.

Specifications

• Model: GLC-SX-MM
• Type: 1000BASE-SX SFP transceiver module for MMF, 850-nm wavelength
• Dimensions: 116.1 x 88.6 x 10.6 inches

Package Contents:

• 2(two) x Cisco GLC-SX-MM SFP Converter