The DEM-420X is a module with 2 XFP slots for 10Gigabit pluggable transceivers. It is designed for D-Link two xStack members¸ the DXS-3550SR and DXS-3326GSR. When the DEM-420X is plugged into the switch¸ it provides 2 uplink XFP 10Gigabit ports for connections to the switches¸ each module providing a whopping bandwidth of 20 gigabit with two appropriate XFPs. Designed to alleviate any bottlenecks that might occur at the access core¸ the DEM-420X is targeted for use as an uplink to servers¸ or backbone switches in medium to large size businesses.""
Electro Voice RE2-Combo Electro Voice RE2-Combo Description: Electro-Voice RE2-C
Besides
D-Link SWT DES-420X 2-PORT SFP UPLINK MODULE
, Copystars supply
Blu Ray Duplicator and
DVD duplicator.