Facmogu
Facmogu DC 12V 3A Power Adapter, 100-240V AC to DC 12 Volt Power Supply
Bottom line: The Facmogu DC 12V 3A Power Adapter ($9.99 on Amazon as of 2026-10-07): Fits both 5.5x2.1mm and 5.5x2.5mm barrel sockets, no adapter tip needed; main trade-off: hard 3A / 36W ceiling rules out most powered USB hubs and drives.
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*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Fits both 5.5x2.1mm and 5.5x2.5mm barrel sockets, no adapter tip needed
- ✓ 6.7 ft (205cm) cable reaches floor outlets from a shelf
- ✓ Over-voltage, over-current and over-temperature protection built in
- ✓ 100-240V input works on foreign mains with a plug adapter
Cons
- ✗ Hard 3A / 36W ceiling rules out most powered USB hubs and drives
- ✗ Indoor use only, so no outdoor camera or sign installs
- ✗ Needs hard flat surface with clearance; beds and carpet trap heat
- ✗ Center-positive only, wrong polarity for some vintage gear
Manufacturer description
The Facmogu DC 12V 3A power adapter is a straightforward replacement supply for the low-power 12V gear scattered around a desk or workbench. It converts any AC 100-240V outlet to a stable DC 12V output at up to 3A (3000mA), which caps it at 36W total draw. That envelope covers wireless routers, LED light strips, LCD monitors, cable boxes, CCTV cameras, powered speakers, audio amp boards, USB hubs and network switches, and Arduino or 3D printer project builds. The tip terminates in a standard 5.5mm OD / 2.5mm ID barrel plug that also seats in 5.5x2.1mm sockets with a center spring contact, so…
SpecPicks Verdict
SpecPicks scored Facmogu DC 12V 3A Power Adapter using a rating × review-volume × price-fit model applied to published specs and reviews across the accessories category. Facmogu's accessories lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for accessories of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Will this power my 12V device?
Only if the device is rated 12V DC and draws 3A or less (36W or less). Check the label on your device or its original adapter; anything above 3A can cause the supply to fail.
What size is the plug, and will it fit my socket?
The plug is a standard 5.5mm outer diameter, 2.5mm inner diameter barrel. It also fits 5.5x2.1mm sockets that use an inner center spring contact, covering both common barrel sizes.
Is the tip positive or negative?
Center-positive. The tip or center pin is positive (+) and the outer sleeve is negative (-). Confirm your device expects center-positive before connecting it.
How long is the cable?
Total cable length is 6.7 feet (205cm), measured from the wall plug through to the DC barrel connector.
Can I use it overseas?
The input accepts AC 100-240V, so it works on both 110V and 220V mains with a physical plug adapter. It is rated for indoor use only.
Key Features
- 【CRITICAL: For 12V/ ≤3A Devices ONLY】-- To ensure proper operation and safety: 1) Your device MUST be 12V DC. 2) Its current draw MUST be 3A or less (Power ≤36W). This is a low-power adapter. Exceeding 3A may lead to failure or damage. The power supply requires adequate palce for heat dissipation, Place on hard, flat surface with clearance. Keep away from soft surfaces (beds, carpets), fabrics, and rubber to prevent overheating.
- 【Detailed Power Specs & Use】-- Provides stable DC 12V, Max 3A (3000mA) output from any AC 100-240V outlet. Total cable length 6.7 ft (205cm). Indoor use only. Ideal for routers, LEDs, monitors, and other low-power 12V equipment within the rated capacity.
- 【Plug Design】-- Fit for both 5.5x2.5mm & 5.5x2.1mm plug. This cable terminates with a "standard" 5.5mm OD, 2.5mm ID DC plug, but it's also compatible with DC 5.5x2.1mm socket with the inner center spring contact. (NOTE: Power Supply Polarity: Center or Tip is positive (+), Sleeve is negative(-).
- 【Built-in Power Supply Protection】-- It ensures safe use with over voltage, over current, and over temperature protection to keep all of your mobile devices safe from unexpected surges and spikes. Wide voltage range from 100V to 240V makes it suitable for travel.
- 【Wide Applications】-- 12V 3A Power adapters are in high demand for audio amp boards, portable powered speakers, cable boxes, LED light strips, LCD monitor, wireless routers, CCTV cameras, DC motors, 3D printers, computer projects, HUB, Switches, audio/ video power supply, and Arduino controllers to provide a safe and stable power supply for your creation.
Full Specifications
| Brand | Facmogu |
|---|---|
| Color | Black |
| Current | DC |
| Voltage | 240 volts |
| Wattage | 36 watts |
| Amperage | 3 A |
| Model Name | 12V 3A Power Adapter |
| Power Plug | Type A - 2 pin (North American) |
| Unit Count | 1 Count |
| Form Factor | Plug |
| Connectivity | Wireless |
| Model Number | AL-1230 |
| Power Source | Corded Electric |
| Input Voltage | 240 volts_of_alternating_current |
| Mounting Type | Wall Mount |
| Built-In Media | connector |
| Connector Type | Barrel Jack |
| Item Type Name | Desktop Adpater |
| Output Current | 3 A |
| Output Voltage | 12 volts_of_direct_current |
Ready to buy?
Facmogu DC 12V 3A Power Adapter, 100-240V AC to DC 12 Volt Power Supply is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.
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