Hammond RB-HFMS4 4U Single-Sided Horizontal Finger Cable Manager

The RB-HFMS4 is a 4U single-sided horizontal finger cable manager with a removable cover, built for structured, higher-density patch cable routing in standard 19-inch EIA-compliant racks. It suits IT and network teams, structured cabling installers, and AV or broadcast integrators who need cables guided into defined pathways between switches and patch panels rather than left in loose bundles.

Construction is 16-gauge steel with polycarbonate fingers rated UL94V-0 for flame resistance, finished in black powder coat that is GREENGUARD, TSCA and RoHS compliant. The finger-style layout separates and directs cable groups, while the removable cover conceals the cabling for a clean front-of-rack appearance and tidier airflow management. Rear cutouts let cables pass through to equipment behind the panel; this unit provides a 5.00 in (127 mm) x 3.60 in (91 mm) rear cable pass-through and a 1.45 in (37 mm) x 2.74 in (70 mm) top pass-through.

Overall dimensions are 6.97 in (177 mm) high by 19.00 in (483 mm) wide by 4.81 in (122 mm) deep, with a nominal listed size of 7 in x 19 in x 4.5 in (178 mm x 483 mm x 114 mm) and 7.00 in (178 mm) of usable 4U mounting height. Internal space measures 5.88 in (149 mm) by 4.60 in (117 mm), and the mounting width is 18.32 in (465 mm) for 19-inch racks. Shipping weight is 5 lbs (2.27 kg).

RB-HFMS4 ships pre-assembled as a back and cover assembly; rack mounting hardware is not included. Two units can be installed back-to-back where double-sided management is required. Part of the Rack Basics line, it is TAA-compliant and manufactured in North America, with USMCA, RoHS and REACH compliance for procurement documentation.