Mean Well RS-35-5 Enclosed Switching AC-to-DC Power Supply, Single Output, 5V, 0-7A, 35W, 1.4" H x 3.2" W x 3.9" L: Amazon.com: Industrial & Scientific
Amazon.com: Telebyte Model 272A - RS-422 to Fiber Optic Converter : Electronics
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RS Pro 7769125 C20 Cable Mount IEC Connector Plug Screw Termination Rated at 16A 250 V ac: Amazon.com: Industrial & Scientific
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Amazon.com: Race Sport RS-16A-SUPPLY Power Supply : Automotive
Amazon.com: abcGoodefg 9 Pin RS-232 DB9 Male to Male Female to Female Serial Cable Gender Changer Coupler Adapter (10 Pack, DB9 Male to Male Female to Female) : Electronics
Amazon.com: Advantech 232SPHI4 RS-232 Optical Isolator - 4kV Isolation, Port Power : Electronics
RS Pro by Allied 8046231: Amazon.com: Industrial & Scientific