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BESTEK International Power Adapter 300W, 220V to 110V Step Down Travel Voltage Converter with 4-Port USB (2 USB 20W) Including US/AU/EU/UK/India/South Africa Plug Adapter (Red)
BESTEK

BESTEK International Power Adapter 300W

Bottom line: The BESTEK International Power Adapter 300W ($36.99 on Amazon as of 2026-10-20 18:15 UTC): 300W step-down converts 100-240V to US 110V in 160+ countries; main trade-off: 300W ceiling rules out hair dryers, kettles, irons and coffee makers.

$36.99

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Buy on Amazon — $36.99 Compare to similar power supplies & cables

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ 300W step-down converts 100-240V to US 110V in 160+ countries
  • ✓ 3 AC outlets plus 4 USB ports charge 7 devices at once
  • ✓ USB-C port delivers 20W; USB-A tops out at 12W
  • ✓ Ships with 5 plug adapters: Type G/D/M/AU/US
  • ✓ NRTL tested with over-current, overload and short-circuit protection

Cons

  • ✗ 300W ceiling rules out hair dryers, kettles, irons and coffee makers
  • ✗ Total draw across all 7 ports must stay under 300W
  • ✗ Only the USB-C port hits 20W; the rest cap at 12W
  • ✗ EU power cable is detachable, so it is easy to leave behind

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SpecPicks Verdict

SpecPicks scored BESTEK International Power Adapter 300W using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies & cables category. BESTEK's power supplies & cables 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 power supplies & cables 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

  • BESTEK Travel Voltage Converter: Converts all countries voltage(100-240V,50/60Hz) to US voltage (110V,60Hz), ideal for charging your multiple devices when traveling abroad. 【Note: Not suitable for devices with power exceeding 300w, such as hair dryers, coffee maker, steam irons, kettles, juicers, etc.】
  • All-in-one Design: 3 AC Outlets and 4 Smart USB (USB-A & USB-C 20w) charging ports with 1 EU detachable power cable, enables you to charge 7 devices simultaneously
  • 4 Smart USB Charging Ports: USB-C port can output a maximum of 20w; USB-A port can output a maximum of 12w; 4 USB ports are sufficient to charge a variety of low-power smart devices.
  • Portable and Universal: Compact size(6×3×1.57 in) with 5 international travel adapters (Type G/D/M/AU/US),powering your devices in more than 160 countries,EASY YOUR TRIP!
  • Safety Guarantee: NRTL safety tested,built-in over-current, over-temperature, overload, short-circuit protection
  • Maximum Wattage: 300W(When simultaneously charging multiple devices,make sure the total wattage is less than 300 watts.) Do not use this power converter to charge your hair dryer regardless of their wattage.

Full Specifications

BrandBESTEK
ColorRed
Plug TypeType E
Plug FormatType E
ConnectivityUSB-C
Model NumberMRJ201GU
Power SourceAC adapter
Input Voltage220 volts
Output Voltage110 volts
Mfr Part NumberMRJ201GU
Number of Items1
Safety GuaranteeNRTL safety tested,built-in over-current, over-temperature, overload, short-circuit protection
All-in-one Design3 AC Outlets and 4 Smart USB (USB-A & USB-C 20w) charging ports with 1 EU detachable power cable, enables you to charge 7 devices simultaneously
Number of Outlets7
Warranty Description18 month
Portable and UniversalCompact size(6×3×1.57 in) with 5 international travel adapters (Type G/D/M/AU/US),powering your devices in more than 160 countries,EASY YOUR TRIP!
Full listing titleBESTEK International Power Adapter 300W, 220V to 110V Step Down Travel Voltage Converter with 4-Port USB (2 USB 20W) Including US/AU/EU/UK/India/South Africa Plug Adapter (Red)

Ready to buy?

BESTEK International Power Adapter 300W, 220V to 110V Step Down Travel Voltage Converter with 4-Port USB (2 USB 20W) Including US/AU/EU/UK/India/South Africa Plug Adapter (Red) 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.

Buy on Amazon — $36.99

*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.

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BESTEK International Power Adapter 300W, 220V to 110V Step Down Travel Voltage Converter with 4-Port USB (2 USB 20W) Including US/AU/EU/UK/India/South Africa Plug Adapter (Red)
$36.99
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