Amazon.com: RCB1060-1U Rackmount 1U 23 inch to 19 inch Rack Reducer Adapter for 2 Post or 4 Post Cabinet (1 Pair) : Musical Instruments
10 NEMA 5-20 1U 19" Cabinet Power Strip - Rackmount Surge Protector, Power Strip PDU, Server Rack PDU | Supplier of Power Related Products From Taiwan | AHOKU Electronic Company
NavePoint 1U Server Rack Rail Depth Adapter Kit 4 inch (10 cm): Rack Mount - Vertical
19" adapter for 10" rack accessories (Digitus, ...) | and more rackmounts at www.drei-d-w .de
RDL HR-HRA1 10.4" Rack Adapter HR-HRA1 B&H Photo Video
5U Adapter Pair, Reduce Rack Width from 23" to 19", 10-32 tapped holes 34-200500
10 Way 19" 1U Power Metered 10A IEC 60320 C13 Sockets IEC 60320 C20 Inlet Rack Mount PDU - Olson Direct