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Black rectangular power adapter with 1 metre cable and 5.5 by 2.1 to 2.5 mm barrel plug

JacobsParts Inc.

JacobsParts ADP-12V-E 12V 2A Power Adapter 5.5x2.1-2.5mm

SKU CH-GPQB-K977X

Delivers 12 V up to 2 A through a 5.5 mm × 2.1‑2.5 mm centre-positive barrel plug on a 1‑metre cable, accepting 100‑240 V AC input

  • Cable length1 meter (3 ft)
  • Connector typeMale Barrel
  • Product typePower Supply
  • Product colorBlack
  • Product dimensions3.82 × 2.8 × 2.44 in
  • Product weight3.17 oz
  • Universal 100-240V input powers the adapter worldwide
  • 12V 2A peak output runs LED strips and small electronics
  • Center-positive 5.5mm x 2.1-2.5mm barrel fits common devices
  • 5A sustained rating ensures reliable long-term operation
  • One-metre cable gives flexible placement near power outlets

Power Adapter for 12 V Devices

The JacobsParts ADP-12V-E converts 100-240 V AC mains power into 12 V DC at up to 2 A. It suits LED light strips, routers, security cameras and other electronics that specify a 12 V input of 2 A or less. The centre-positive 5.5 mm barrel plug fits both 2.1 mm and 2.5 mm jack sizes.

Thermal and Power Behaviour

The unit delivers a 24 W peak rating with a recommended 1.5 A sustained load for cooler operation. Devices draw only the current they require, so a 500 mA or 1 A load runs well within limits. The compact black enclosure dissipates heat passively without a fan, keeping noise at zero.

Build Integration

A one metre cable provides placement flexibility between the wall socket and the device. The adapter measures 3.82 x 2.8 x 2.44 inches and weighs 3.17 ounces, so it fits behind furniture or inside cable management channels. It is not for equipment needing more than 12 V or a sustained draw above 1.5 A.

How it compares

Measured against everything we stock in AC Adapters & Power Bricks, at today’s prices. Recalculated every night.

Price $4.99
Cheaper than about 97% of the 3,875 comparable items (median $23.99).

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Specifications

Product
Brand nameJacobsParts
Model nameADP-12 V-E
Product typePower Supply
Product colorBlack
Ports & slots
Connector typeMale Barrel
Size & build
Cable length1 meter (3 ft)
Product dimensions3.82 × 2.8 × 2.44 in
Product weight3.17 oz

Questions about this item

How do I install the ADP-12V-E adapter and what polarity mistake should I avoid?

Plug the IEC C7 mains lead into the adapter then insert the 5.5 mm x 2.1-2.5 mm barrel into the device ensuring the centre pin is positive as marked on the label.

What maintenance or replacement will the ADP-12V-E need over time?

The unit has no user-serviceable parts; if the 1 m output cable or the barrel connector shows wear or the adapter no longer delivers 12 V under load, replace the whole power supply.

What sustained-load limit appears first when the ADP-12V-E runs continuously?

The manufacturer recommends a 1.5 A maximum sustained load; exceeding this can cause overheating or shutdown before the 2 A peak rating is reached.

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