RM16M Model 34 Chassis Dual Mass Term DC - Dual DC Power Supplies with Features & Benefits : * Fits any standard 19" or 23" electronics rack * Supports DATA CONNECT' broad family of RM16M communications cards * Snap-to-backplane segments permit an exact equipment match on a slot-by-slot basis * Plug-and-play installation to optimize uptime * All RM16M racks have their own power supply * Problems with an individual device will not disable an entire shelf * Convection cooling, no fans to break down * Supports up to 16 Motorola RM16M cards