The RSSB1UBK is a 1U rack shelf stop bracket, supplied as a matched left-hand and right-hand pair, that keeps a sliding rack shelf from extending unintentionally. It is aimed at IT and data center teams, AV and broadcast integrators, telecom installers and OEM engineers who need a simple safety stop on shelves that would otherwise roll out during servicing, transport or in busy walkways.

Unlike a permanent locking device, the RSSB acts as a retention stop: the shelf is held securely when the brackets are engaged, yet full shelf travel is restored when the release tabs are raised. Construction is 16-gauge mild steel with a black powder coat finish that is GREENGUARD, TSCA and RoHS compliant, so the brackets stand up to repeated contact with a loaded shelf.

This 1U version measures 1.72 in (44 mm) overall height and 0.75 in (19 mm) overall depth, with a usable mounting height of 1.75 in (44 mm) across one rack unit. The product list gives a nominal size of 1.75 in x 0.5 in x 0.75 in (44 mm x 13 mm x 19 mm). Drawing details include a 1.25 in (32 mm) flange dimension and 0.25 in (6 mm) diameter mounting holes.

The open mounting slot design lets the RSSB1UBK be installed over existing rack-mounted equipment, so retrofits do not require the shelf to be pulled out of service. It suits most standard 19-inch EIA-compliant racks and cabinets that use sliding shelves. Each pair ships with two stick-on rubber bumper feet; rail mounting hardware is not included.

RSSB1UBK is manufactured in North America in an ISO 9001 certified facility, is TAA compliant and USMCA compliant, and is RoHS and REACH compliant.