Extron RSB 129 (part number 60-604-01) — the black 1U Basic Rack Shelf for 9.5-inch deep products. Extron lists this part number as retired.

This is the deepest shelf in the basic range: a standard 19-inch, one-rack-unit steel tray with 9.5 inches of usable depth, intended for any workable mix of 1U half-rack, quarter-rack and eighth-rack width Extron products. Devices are fastened to the tray from below with the hardware that ships with it, so nothing protrudes through the front face. Being the basic version rather than the RSU 129 kit, it arrives without blanking plates; RFF Series faceplates are the matching accessory when the leftover positions need covering.

Key Capabilities

• 1U steel shelf with 9.5-inch (24.1 cm) depth
• Takes any combination of half-, quarter- and eighth-rack width devices
• 19-inch rack width, 17.5 inches usable across the tray
• Underside product mounting with the hardware supplied
• Black finish — the retired colour option for the RSB 129
• RFF Series false faceplates available separately

Where It Is Used

Deep equipment racks in control rooms, command centres, broadcast facilities, simulation labs and large-venue AV systems, where full-depth hardware sits below and a tray of smaller interfaces has to share the same rack column.

Specifications at a Glance

• Model: Extron RSB 129, part number 60-604-01
• Rack height: 1U, 1.73 in (4.4 cm)
• Width: 19 in (48.25 cm) with rack ears, 17.5 in (44.5 cm) usable
• Depth: 9.5 in (24.1 cm); steel construction
• Finish: black; false faceplates not included

Also referenced as Extron RSB129, RSB-129, part number 6060401.