D-Link India Limited manufactures 48-Port 10/100Mpbs with Four-Port 10/100/1000Mbps Copper and Two Combo Copper/SFP Smart Switch. D-Link India Limited is an ISO 9001:2000 and ISO 14001:1996 certified company. This switch features plug-and-play function and are suited for small and medium-sized business [SMB] networking. Each switch of the device is housed in a new style rack-mount metal case with easy-to-view front-panel diagnostic LEDs, port and provides advance features including Four Gigabit uplinks, combo 1000BASE-T/SFP, network security, traffic segmentation, QoS and versatile management. Supporting auto-detection of MDI/MDIX, this switch offers easy Ethernet connection to the desktop. Each switch provides 4 Gigabit uplinks connection to a Gigabit backbone or servers. Implemented as complete L2 devices, 48-Port 10/100Mpbs with Four-Port 10/100/1000Mbps Copper and Two Combo Copper/SFP Smart Switch include functions such as IGMP snooping, port mirroring, Spanning Tree and port trunks to enhance performance and network resiliency.