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⚡ Power your Pi like a pro — no compromises, just pure performance!
The Geekworm 20W 5V 4A USB-C Power Supply is a UL-certified, high-current adapter designed specifically for Raspberry Pi 4 Model B and compatible single-board computers. Featuring comprehensive safety protections and a 1.2m cable, it delivers stable, reliable power to keep your projects running flawlessly.
| Amperage | 4 A |
| Asin | B09J856PND |
| Best Sellers Rank | #198 in Computer Power Supplies |
| Brand | Geekworm |
| Built In Media | 1x 5V 4A US Plug Type-C Power Supply |
| Color | Black |
| Compatible Devices | Orange Pi 5/5B/3B/5 Plus, Phone with USB Type-C power in port, Raspberry Pi 4 Model B, RockPi, Thinker Board |
| Compatible Phone Models | Raspberry Pi 4 8GB/4GB/2GB/1GB |
| Compatible Power Plug Type | Type C |
| Connectivity Technology | USB |
| Connector Type | usb |
| Current | DC |
| Current Rating | 4 A |
| Customer Package Type | FFP |
| Customer Reviews | 4.7 4.7 out of 5 stars (203) 4.7 out of 5 stars |
| Enclosure Material | Plastic |
| Form Factor | Stand |
| Frequency Range | 50-60 Hz |
| Input Voltage | 240 volts |
| Item Weight | 131 g |
| Main Power Connector Type | 2 Pin |
| Manufacturer | Geekworm |
| Mfr Part Number | TB-2021-35 |
| Model Name | Power Adapter |
| Model Number | TB-2021-35 |
| Mounting Type | Wall Mount |
| Number Of Items | 1 |
| Number Of Power Levels | 1 |
| Output Current | 4 A |
| Output Voltage | 5 volts |
| Plug Type | A - US style |
| Power Plug | Type A - 2 pin (North American) |
| Power Source | Corded Electric |
| Special Features | Short Circuit Protection |
| Specification Met | UL |
| Total Usb Ports | 1 |
| Unit Count | 1 Count |
| Voltage | 5 volts |
| Warranty Description | 3 months |
| Wattage | 20 watts |
| Wired Charging Connector Type | USB Type C |
User
I use it daily 😎
It works. Quality is pretty good too. Take good care of it and I am sure it’ll last for many decades 😁
User
Great brick
Works great for my usb c ohm tech 18650 battery charger really needed a 4 amp power supply and this came in handy would recommend
User
One Happy Raspberry Pi
Works great and provides constant and continuous power to my Pi's.
User
Does what it's desinge to do!
It's a small "wall wart" device that works fine to charge a boom box.However, the USB-C connector cable is NOT removeable from the wall wart.
User
Necessary for a Pi
I was wondering why my OrangePi would hang up every so often. I was using a regular phone charger plug with a usb. The plug itself wasn't supplying enough juice. This solved my problem and my Pi no longer hangs up. It was definitely undervolted using a smartphone charger.
User
Holding up so far
Many uses.....
User
Great power supply for Raspberry Pi 4
Replaced a phone charger and cord with this wall wart PSU. Solid power for my Pi and the cord length is better than what I had with the repurposed phone charging components.
User
Powerful
Its got the ampsso dumb these boards havent shifted to 12v
User
Impeccable
It looks and works exactly as described. It is somewhat more voluminous than the original Raspberry Pi source because it is more powerful. Quality looks very good. No more “low voltage” messages. 😃
User
Buen producto.
Buen producto, cumple con el objetivo. Relación costo/calidad es bueno
User
El cable esta algo corto
Cumple bien su función lo uso con un mister pi, el único unico inconvenientes es que el cable esta algo corto, y el cuadrito esta muy grande
User
Beware shipped unit was only rated 3amps instead of 4..
Returned for a full refund.
User
Got a 3A charger, not a 4A one
Not as advertised. Returning.
Trustpilot
1 month ago
1 month ago