JacobsParts 5V 4A 20W Power Adapter for USB Hubs and Other 5V Devices 5.5mm x 2.1mm
Key features
- •Input: 100-240V (worldwide use)
- •Output: 5V 4A (20W Max.)
- •Connector: 5.5x2.1mm Male Barrel
JacobsParts 5V 4A 20W Power Adapter for USB Hubs and Other 5V Devices 5.5mm x 2.1mm
List Price: $13.48$12.13DEALYou Save: $1.35 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 23, 2026In Stock (1)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
Reviews sourced from verified Amazon purchasers3.5
out of 5
Based on 10 reviews
5★
50%
4★
10%
3★
10%
2★
10%
1★
20%
Does not live up to specifications.
Jim Williams✓ Verified Purchase•November 6, 2017
The power supply can not maintain the 4 Amp output when a load is applied. I purchased this to replace a power supply that had failed, but the power would cause the unit it was attached to cycle on and off due to the lack of amperage. I ended up ordering a different power supply that did work.
Cheap
Russell D. Greig✓ Verified Purchase•July 31, 2017
Cheaply made and I still get under voltage warning with raspberry pi 3b. Think the wires are too thin to deliver the rate current. Since it was inexpensive i will try to replace the wires
Solid power adapter, but not recommended for Lenovo laptop
Mark L AZ✓ Verified Purchase•June 19, 2017
I purchased this to go with my Lenovo Ideapad 100S, being the cheapest matching power adapter I could find. It sort of works, but the connector is *just barely* too small or big to make a good connection and the tip has to be wiggled for it to charge. The charger doesn't get too hot when charging. The cords are annoyingly short for a laptop.
If used for its intended purpose I'm sure it's fine. Probably not recommended for the Lenovo laptop unless you are inclined to modify your as I have.
If used for its intended purpose I'm sure it's fine. Probably not recommended for the Lenovo laptop unless you are inclined to modify your as I have.
Poor quality power supply
Missy✓ Verified Purchase•April 28, 2017
After 2 weeks of use on a raspberry pi 3 this power supply no long provides the full 5v to the pi and give it a constant power issue. I would not recommend this power supply as it does not last at all.
Nice and stable
Mr.EasyCakes✓ Verified Purchase•March 31, 2017
I use this to power RaspberryPi 2/3 with peripherals. I am always irritated that a 2.5 amp usb wallwart is barely enough for the Pi 2/3 alone. If you want to run a small display its another wallwart. Usb Hard Drive for a torrent server maybe? Another wallwart. With this I can just splice this directly into a bus bar and bam. Everything can be run without any undervolting going on. Nice and stable, well so far anyway. I have also had good success with using a 12v buck converter down to 5v 3a GEREE DC DC Converter Buck Module 12V to 5V 3A USB Output Step Down Voltage Regulator Charge for Samsung Galaxy ，iPad iPhone 4S 5 6/6 Plus etc. This is handy for anyone that has to drive an lcd display with 12v and also doesn't wish to have multiple power supplies.
Page 1 of 2
