MuxLab 500923 16 Port Rackmount Transceiver Chassis 4.5U

The 500923 holds the same 16 MuxLab transceivers as the 500920 in a taller 4.5U format, which some head-end racks prefer for cable management clearance around a dense module.

Front- or rear-facing installation and the same transceiver compatibility carry over from the 3U version, so the choice between the two comes down to what fits the rack's cable routing.