Category Name: Extreme Networks Extreme 45112 Alpine 3800 4-port 1000BASE-X GBIC-based (unpopulated) Module EXTREME 10053 Mini-GBIC , SFP , 1000BASE-ZX , LC Connector (single mode fiber) Extreme 10052 Mini-GBIC , SFP , 1000BASE-LX , LC Connector (single/multimode fiber) Extreme 45110 Alpine 3800 4-port 1000BASE-SX (MT-RJ-based) Module