Skip to main content
SHNITPWR 144W Universal Power Supply Adjustable DC 36V 30V 24V 20V 19V 14V 12V 9V AC/DC Adapter 100V~240V AC to DC Variable Power Converter 9V ~ 36V 4A 144W Power Adapter with 14 Tips 5.5x2.5mm
SHNITPWR

SHNITPWR 144W Universal Power Supply Adjustable DC 36V 30V 24V 20V 19V 14V 12V 9V AC/DC Adapter 100V~240V AC to DC Variable Power Converter 9V ~ 36V 4A 144W Power Adapter with 14 Tips 5.5x2.5mm

Bottom line: The SHNITPWR 144W Universal Power Supply Adjustable DC 36V 30V 24V 20V: Output adjustable 9V-36V with LCD readout, so you dial voltage before connecting; main trade-off: not a charger - cannot charge battery devices such as laptops.

Check price on Amazon

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

Pros & Cons

Pros

  • ✓ Output adjustable 9V-36V with LCD readout, so you dial voltage before connecting
  • ✓ 14 tips plus 5.5x2.5mm original covers 3.5x1.35mm, Micro-USB, Type-C, DC terminal
  • ✓ 4A / 144W ceiling powers routers, TV boxes, LED strips, NVR camera systems
  • ✓ Included polarity converter cable widens device compatibility versus the older version
  • ✓ Over-voltage, over-current, over-temp and short-circuit cutoffs are all built in

Cons

  • ✗ Not a charger - cannot charge battery devices such as laptops
  • ✗ Wrong voltage setting can damage the connected device; no auto-detect
  • ✗ Maker advises staying under 80% load, so usable headroom is nearer 115W
  • ✗ Indoor use only, ruling out outdoor cameras and garden lighting

SpecPicks Verdict

SpecPicks scored SHNITPWR 144W Universal Power Supply Adjustable DC 36V 30V 24V 20V… 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

  • 【𝐈𝐧𝐩𝐮𝐭 𝐚𝐧𝐝 𝐎𝐮𝐭𝐩𝐮𝐭】Input: AC 100~240V, 50/60Hz ; Output: DC 9~36V Adjustable, Max 4A 144W ; It can supply with any voltage between 9~36V,such as 36V 30V 24V 20V 19V 14V 12V 9V, etc and any amp less than 4A, such as 500mA,1A, 1.5A, 2A, 2.5A, 3A,3.5A,4A. LCD display will show the output voltage, in case that wrong voltage regulation damage your device.
  • 【𝐔𝐩𝐠𝐫𝐚𝐝𝐞𝐝 𝐕𝐞𝐫𝐬𝐢𝐨𝐧 𝐏𝐨𝐰𝐞𝐫 𝐒𝐮𝐩𝐩𝐥𝐲】Based on hundreds of users feedback, we have made the following improvements: 1. The knob can be adjusted more evenly, and it can reach 22V ~ 23V by rotating 50%. 2. Increase the off gear to turn off the power without pulling the plug. 3.Add a polarity converter cable, which make it compatible with more devices,doubles its range of application.
  • 【𝟏𝟒𝐩𝐜𝐬 𝐅𝐫𝐞𝐪𝐮𝐞𝐧𝐭𝐥𝐲 𝐔𝐬𝐞𝐝 𝐓𝐢𝐩𝐬】It comes with an original 5.5x2.5mm tip 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. Can be applied to almost all commonly used electronic devices. You can screw wires onto it easily, perfect for DIY projects.
  • 【𝐖𝐢𝐝𝐞 𝐑𝐚𝐧𝐠𝐞 𝐨𝐟 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬】The 144W all-in-one multipurpose AC/DC adapter fit for many 9~36V small household electronics such as LED strips, under-cabinet light, TV Box, smart speaks, wireless routers, essential oil diffuser humidifier, USB fan, Wifi camera, USB Hub, hard disk box, DC motor, DC pump, digital photo frame, DVR NVR surveillance system etc.For indoor use only.
  • 【𝐒𝐚𝐟𝐞𝐭𝐲 𝐏𝐫𝐨𝐭𝐞𝐜𝐭𝐢𝐨𝐧 𝐒𝐲𝐬𝐭𝐞𝐦𝐬】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. 6ft long power cable makes it convenient to use.
  • 【𝐊𝐢𝐧𝐝𝐥𝐲 𝐍𝐨𝐭𝐞】This product is an AC to DC adapter, NOT charger!!!It can’t be used to charge electronic devices with batteries, such as laptops. Please choose correct voltage before plug it to your device. Wrong voltage may damage your device. We recommend to use less than 80% of the full load. If there is any issue, please contact us anytime.

Full Specifications

BrandSHNITPWR
ColorBlack
CurrentAC to DC
Voltage36 Volts
Wattage144 watts
Amperage4 Amps
PortableNo
Plug TypeA- US style
Power PlugType A - 2 pin (North American)
Unit Count1.0 Count
Form FactorAdapter
ConnectivityWireless, USB, WiFi
Model NumberSNT-0936-144
Power SourceCorded Electric
Input Voltage220 Volts (AC)
Mounting TypeWall Mount
Built-In Media15 DC tips
Connector TypeMicro USB
Output Current4 Amps
Output Voltage9 Volts

Ready to buy?

SHNITPWR 144W Universal Power Supply Adjustable DC 36V 30V 24V 20V 19V 14V 12V 9V AC/DC Adapter 100V~240V AC to DC Variable Power Converter 9V ~ 36V 4A 144W Power Adapter with 14 Tips 5.5x2.5mm 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.

Check price on Amazon →

Related Accessories

More guides & deep dives from the SpecPicks archive

Browse all articles & guides →

More reviews from the SpecPicks archive

Browse all reviews →

Earliest SpecPicks reviews

Browse full archive →