Train Control Systems DCC Decoder Harness | 3.5

Train Control Systems DCC Decoder Harness | 3.5" | All Scales

Marsoni

M251S

$15.95

Get it in 3 business days with 1 day shipping. Friday, May 29

Train Control Systems DCC Decoder Harness | 3.5" | All ScalesT 3. 5" 21 JST 9 Pin to NEM21 Socket 3. 5" 8. 89cm Wires The T 3. 5" 21 is an adapter harness with 3. 5" (8. 89 cm) wires used for connecting a 9 Pin JST to a 21 Pin motherboard. 9 Pin JST decoders such as the WOW101, T1, and KAT22 may be adapted to interface with NEM660 (21MTC) via this adapter harness

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We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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I bought this wrist rest in like new condition for $6 and I will say it’s 100% worth MSRP at $15-20. The weight is nice, it doesn’t slip on my mousepad. It’s very comfortable to rest my palms and wrist on. The sizing pairs well with my 80% keyboard. It functions as it should. I use this at a stand up desk on an industrial shop floor to help put my wrist at a better angle and it works perfect.

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Reviewed in the United States on July 23, 2025

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Serra

West Palm Beach, US

★★★★★ 3

Decent; does the job

Size: 100% Standard

Cushion feels very porous and thin. I suppose you can call it memory foam because it basically sunk where I usually rest my wrist and has not returned to its original shape (lol). The small rubber pads on the underside help a bit but slip resistance would probably be better if they covered a larger area. Overall, it's not bad for sub $20 full size kb wrist rest.

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Reviewed in the United States on January 5, 2026

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Denisse Hdez

Alexandria, US

★★★★★ 5

Is does the job, love it.

Size: 60% Compact

Is really comfy, it does the job, you can't go wrong with it. Just buy it if you have a 75% keyboard or less because is not long. For me is not a problem.

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Reviewed in the United States on February 20, 2026

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Timothy Porter

Phoenix, US

★★★★★ 5

Nice wrist rest

Size: 100% Standard

Comfortable angle, solid enough to not move around but soft enough to be good for long term usage.

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Reviewed in the United States on April 6, 2026

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