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Blue ATX benchtop adapter board with 24-pin socket, USB port, binding posts and fuses

JMT

JMT 2pcs ATX 20/24Pin Benchtop Power Adapter Board with USB 5V Port Blue

SKU CH-1BHR-TB5Z8

Converts an ATX supply into a four-rail benchtop unit with 3.3V, 5V, 12V and -12V outputs, each fused at 5A and brought to binding posts

  • TypeAT
  • Converts ATX supply into bench source with 3.3 V 5 V 12 V -12 V rails
  • Four fused 5 A channels each with dedicated ground binding post
  • On-board 24-pin ATX socket accepts 20-pin plugs with power LED and switch
  • Compact 128 x 48 x 30 mm PCB on plastic spacers prevents shorts
  • Two identical boards included for parallel or backup project use

Bench power adapter for ATX supplies

This pair of blue adapter boards converts a standard ATX power supply into a benchtop unit with four regulated rails. Each board exposes 3.3 V, 5 V, 12 V and -12 V outputs through binding posts that share a common ground. A 5 A replaceable fuse protects every rail and an onboard switch cuts all outputs instantly. The module measures 128 x 48 x 30 mm and sits on plastic spacers to prevent shorts.

24-pin ATX connector with 20-pin backward fit

The board accepts a full 24-pin ATX plug while remaining compatible with older 20-pin connectors. Power flows through the standard socket to the four fused outputs and a dedicated USB 5 V port. A green LED indicates when the supply is live. No soldering is required; the binding posts accept bare wire or banana plugs for quick project wiring.

Makers who need quick rail access without a bench

Hobbyists building embedded boards, repairing vintage gear or testing sensors will appreciate the instant 3.3 V, 5 V and ±12 V rails. Users requiring higher current than 5 A per rail or isolated outputs should look elsewhere. The kit includes two identical boards so a spare is always on hand.

Highlights

  • Converts ATX supply into bench source with 3.3 V 5 V 12 V -12 V rails
  • Four fused 5 A channels each with dedicated ground binding post
  • On-board 24-pin ATX socket accepts 20-pin plugs with power LED and switch
  • Compact 128 x 48 x 30 mm PCB on plastic spacers prevents shorts
  • Two identical boards included for parallel or backup project use

Specifications

TypeAT

Questions about this item

What does the 5 A fuse on each rail mean when I am powering a project?

Each 3.3 V, 5 V, 12 V and -12 V output is protected by its own 5 A fuse, so a short or overload on one rail will not affect the others and the fuse can be swapped by the user.

How does the 24-pin ATX connector limit what power supplies I can use?

The board accepts a standard 24-pin ATX plug and is also compatible with 20-pin plugs, so any ATX or partial BTX supply with those connectors will work.

Will the 128 × 48 mm board fit inside a standard PC case or do I need open bench space?

The board measures 128 × 48 × 30 mm and includes plastic spacers to prevent shorts, so it is intended for open benchtop use rather than mounting inside a case.

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