GLC-SX-MM is the upgrade version of WS-G5484
 

The GLC-SX-MM from ourfiber.com is 100% compatible for 1000Base-SX up to 1.25Gbps data-rate and 550 distance with multi mode fiber. it is high performance,The List--5 Things Rift Wrong,上海上门按摩,While Sie Offer the cheapest Warcraft Gold Safely, cost effective SFP transceiver which with the hot pluggable. The transmitter section uses a Vertical Cavity Surface Emitted Laser (VCSEL) and is a Class 1 laser compliant according to International Safety Standard IEC 60825, support the operating Case Temperature Standard: 0℃ ~ +70℃, the receiver section uses an Integrated GaAs Detector Preamplifier (IDP) mounted in an optical header and a limiting post-amplifier IC. Sure it is ROHS and Lead-Free and ISO9001 standard.
GLC-LH-SM uses the 1310nm SMF which upto 10km distance but it usually more expensive, the GLC-SX-MM SFP transceiver can treat as the upgrade version of the GBIC transceiver WS-G5484. and the SFP+ transceiver SFP-10G-SR is called SFP plus transceiver which it is not only the upgrade version of GLC-SX-MM but also develop the fiber optic network to a new level with XENPAK transceiver, XFP transceiver,Coming to Russia!, X2 transceiver.