This HP 3CSFP91 compatible SFP transceiver provides 1000Base-SX throughput up to 550m over multi-mode fiber (MMF) at a wavelength of 850nm using a LC connector. The transceiver is guaranteed to be 100% compatible with the equivalent HP transceiver. This easy to install, hot swappable transceiver has been programmed, uniquely serialized and data-traffic and application tested to ensure that it will initialize and perform identically. It is built to meet or exceed the specifications of HP, as well as to comply with multi-source agreement (MSA) standards to ensure seamless network integration. Device Type: SFP (mini-GBIC) transceiver module - LC multi-mode Form Factor: Plug-in module Cabling Type: 1000Base-SX Data Transfer Rate: 1 Gbps Optical Wave Length: 850 nm Data Link Protocol: Gigabit Ethernet Max Transfer Distance: 1800 ft OEM Manufacturer Equivalent Part Number: HP 3CSFP91 Dimensions (WxDxH): 0.3 in x 0.5 in x 2.2 in Weight: 2.4 oz Manufacturer Warranty: Limited lifetime warranty Designed For: 3Com SuperStack 3 Switch 3812, Switch 3824, Switch 3848; Switch 4070 Device Type: SFP (mini-GBIC) transceiver module Form Factor: Plug-in module Color: Silver Connectivity Technology: Wired Cabling Type: 1000Base-SX Data Link Protocol: Gigabit Ethernet Data Transfer Rate: 1 Gbps Optical Wave Length: 850 nm Max Transfer Distance: 1800 ft Interfaces: 1 x Ethernet 1000Base-SX - LC multi-mode female x 2 Compliant Standards: MSA OEM Manufacturer Equivalent Part Number: HP 3CSFP91 Width: 0.3 in Depth: 0.5 in Height: 2.2 in Weight: 2.4 oz Designed For: 3Com SuperStack 3 Switch 3812, Switch 3824, Switch 3848 3Com Switch 4070 Service & Support: Limited warranty - lifetime Service & Support: Limited warranty - lifetime