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Train Control Systems KA2-C Keep Alive 1457

Marsoni M251S
Sale price$29.95
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Get it in 3 business days with 1 day shipping. Friday, May 29
Train Control Systems KA2-C Keep Alive 1457TCS Keep Alive (KA) devices are used to supply power to decoders during times of power interruption due to dirty track or problematic track work. Newly redesigned at half the size of a KA4, the KA2 will power HO or N scale locomotives with approx. 30% of the capacitance of KA3 KA4 devices (depending on the locomotive and motor). This Keep Alive includes a 2 Pin Quick Connector Harness with which to attach it to a decoder. Dimensions: 0. 35" x 0. 35" x
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.5 ★★★★★
Based on 108 reviews
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Thomas G.
Port Orchard, US
★★★★★ 5
Worth the money!
Size: 50mm/2inch, Color: Black, Number of Items: 2
This kit is great. I bought this because I know that the seller paired the cutting tool to be the perfect size and it was! Not just that, but the hole cutter was well done and cut thru the 3 layers - laminate, plywood and particle board with ease. The only thing that I would do different, is go to 3" next time. 2" was very tight when running the 2 @ 120 volt cord ends through the cap.
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Reviewed in the United States on December 5, 2025
T
Verified Purchase
Tmach
San Leandro, US
★★★★★ 5
Very sturdy under desk mount
Color: Black, Size: Width up to 13.4''
I'm using this with an Asus Prime micro-ATX case on a sit/stand desk, and it works beautifully. It's expandable, so it would have no trouble with a full ATX case. The PC is well supported and there is no wobble whatsoever even when the desk is moving between sitting and standing positions. Highly recommended.
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Reviewed in the United States on May 13, 2026
O
Verified Purchase
Omer
Natrona Heights, US
★★★★★ 5
Very Sturdy!
Color: Black, Size: Width up to 13.4''
This was great for my desktop tower. I used it to mount my tower to my standing desk and it was perfect. it fit very nicely and very sturdy. Highly reccomend!
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Reviewed in the United States on May 25, 2026
M
Verified Purchase
Michael Richter
Lowell, US
★★★★★ 5
Love it
Color: Black, Size: Width up to 13.4''
Amazing mounts my gaming rig under my desk so that I can move it up and down without worrying about cables and such also makes the cable management a lot easier.
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Reviewed in the United States on May 22, 2026
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Verified Purchase
B. Teachman
Omaha, US
★★★★★ 4
Great computer mount but was missing some parts
Color: Black, Size: Width up to 13.4''
Works great but was short 1 machine screw, and had no wood screw for attachment to the desk. The brackets them self are great.
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Reviewed in the United States on January 10, 2026

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