SHNITPWR
SHNITPWR 30W Power Supply 3V 4.5V 5V 6V 7.5V 9V 12V Adjustable Variable AC/DC Adapter
Bottom line: The SHNITPWR 30W Universal Power Supply 3V 4.5V 5V 6V 7.5V 9V 12V: Seven selectable voltages (3V-12V) replace a drawer full of single-voltage wall warts; main trade-off: not a charger - SHNITPWR warns it can damage battery devices like laptops.
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Pros & Cons
Pros
- ✓ Seven selectable voltages (3V-12V) replace a drawer full of single-voltage wall warts
- ✓ 14 tips plus a 5.5x2.5mm original cover routers, TV boxes, LED strips, and DVRs
- ✓ Reverse-polarity converter included, so center-negative gear works without rewiring
- ✓ 5V 2.1A USB port at the base powers a second device from the same brick
Cons
- ✗ Not a charger - SHNITPWR warns it can damage battery devices like laptops
- ✗ Wrong voltage selection can kill your device; no auto-detect safeguard
- ✗ 2.5A / 30W ceiling rules out monitors, larger amps, and powered hubs
- ✗ SHNITPWR advises staying under 80% of rated wattage, so usable headroom is ~24W
SpecPicks Verdict
SpecPicks scored SHNITPWR 30W Universal Power Supply 3V 4.5V 5V 6V 7.5V 9V 12V… using a rating × review-volume × price-fit model applied to published specs and reviews across the accessories category. SHNITPWR'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.
Key Features
- Important Note: 1. Before purchasing, please check whether the working voltage of your device is DC 3.5V~12V and the current is not greater than 2.5A; 2. Check whether the DC connector is the same size as the product (please see the picture for details).
- Input: AC 100~240V, 50/60Hz; Output: DC 3.5V 4.5V 5V 6V 7.5V 9V 12V adjustable, Max 2.5A 30W; It can supply with amp less than 2.5A, such as 300mA 500mA 800mA 1A 1.2A 1.5A 1.8A 2A 2.1A 2.2A 2.4A 2.5A. Equipped with a 5V 2.1A USB port at the bottom, you can connect standard USB cable to it. (USB cable not included).
- It comes with an original 5.5x2.5mm tip (inside"+", outside"-") and 14pcs frequently used tips: 6.5x4.4mm+Pin, 5.5x2.1mm, 5.5x3.0mm+Pin, 5.0x2.5mm, 6.3x3.0mm, 5.5x1.7mm, 4.8x1.7mm, 4.0x1.7mm, 3.5x1.35mm, 3.0x1.1mm, 2.5x0.7mm, Micro-USB, Type-C and DC terminal connector. We especially add a reverse polarity converter, which will double its application scope.
- The 30W all-in-one multipurpose AC/DC adapter fit for many 3~12V under 30W small electronics such as LED strips, under-cabinet light, TV Box, smart speaks, wireless routers, essential oil diffuser humidifier, USB fan, camera, USB Hub, hard disk box, CD Player, DVD Player, DC motor, DC pump,DVR NVR surveillance system etc.
- Built-in multiple safety protection systems. Automatic over voltage cut-off, over current cut-off, over temperature cut-off, short circuit cut-off. We focus on producing premium quality and safety power adapters. No noise, no spontaneous combustion, no explosion, no fire hazard, safe to use. 4.92ft long power cable makes it convenient to use.
- This product is an AC to DC adapter, NOT charger!!!It can’t be used to charge electronic devices with batteries, such as laptops. Otherwise, it may damage your device. Please choose correct voltage before plug it to your device. Wrong voltage may damage your device. We recommend that you use this power supply to power devices that do not exceed 80% of the maximum power of the power supply.
Full Specifications
| Brand | SHNITPWR |
|---|---|
| Color | Black |
| Current | DC |
| Voltage | 12 volts |
| Wattage | 30 watts |
| Amperage | 2.5 A |
| Plug Type | 5.5x2.5mm DC Tip |
| Power Plug | Type A - 2 pin (North American) |
| Unit Count | 1 Count |
| Form Factor | Box-shaped adapter with attached power cable |
| Connectivity | Wireless, USB |
| Model Number | J200-2400200D |
| Power Source | Corded Electric |
| Input Voltage | 120 volts |
| Mounting Type | Wall Mount |
| Built-In Media | usb cable |
| Connector Type | USB Type C |
| Output Current | 2.5 A |
| Output Voltage | 12 volts_of_direct_current |
| Connection Type | Wireless |
| Full listing title | SHNITPWR 30W Universal Power Supply 3V 4.5V 5V 6V 7.5V 9V 12V Adjustable Variable AC/DC Adapter with 5V 2.1A USB Port, 100V-240V AC to DC 3V~12V Converter 0.5A 1A 1.2A 1.5A 2A 2.5A Max with 14 Tips |
Ready to buy?
SHNITPWR 30W Universal Power Supply 3V 4.5V 5V 6V 7.5V 9V 12V Adjustable Variable AC/DC Adapter with 5V 2.1A USB Port, 100V-240V AC to DC 3V~12V Converter 0.5A 1A 1.2A 1.5A 2A 2.5A Max with 14 Tips 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.
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