Power Strips

21W Power Strip - Small & Compact - Grounded Dual USB + USB-C - 3 USA Input (PS-3B4U-21W)

21W Power Strip - Small & Compact - Grounded Dual USB + USB-C - 3 USA Input (PS-3B4U-21W)
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Key Features

  • The Compact Travel Power Strip by Ceptics: Designed in the USA - simple, safe and easy to use
  • 21W Power strip - 7 in 1 - You are able to charge 7 devices with only 1 outlet.
  • 3x US standard outlets - Accepts the standard N. American 2 or 3 prong flat pin NEMA 5-15 plug (including polarized)
  • 3 USB & 1 USB-C ports - Perfect for charging you cell phones, laptop, ipads, tablets and even the new iPhone with USB-C
  • Single USB-A Output: DC 5V, 2.4A Max - Single USB-C Output: DC 5V, 3.0A Max - Total- 4.2A Max
  • SMARTVOLTAGE TECHNOLOGY - Quick Charge 3.0 and Power Delivery PD allows you to charge up to 30% quicker
  • Built-in surge protection - protect your high end electronics from harmful voltage surges and spikes
  • Fully grounded connection from the input to the output
  • Small & Compact Size travel power strip
  • Designed by a Traveler and perfected for a Traveler - compact size measuring 2.6" x 2.6" x 2.3" & weighs less than 5 oz with a 5 feet long flexible USA cord.
  • Max. amps up to 10A
  • Max. voltage up to 250V
  • ETL Listed & RoHS Compliant
  • 2-Year Limited Warranty included
  • Note: This power strip doesn't convert voltage. Its compatible for use with dual voltage or worldwide voltage devices with input voltage range from 100-240V. If your device doesn't support the destination country's voltage then you may need to use it with an appropriate size voltage converter. Cell phone chargers such as iPad, iPhone, laptop chargers are dual voltage and are compatible with this power strip.
Designed in the USA ETL Listed RoHS Compliant 2-year warranty
21W Power Strip - Small & Compact - Grounded Dual USB + USB-C - 3 USA Input (PS-3B4U-21W)

Technical Specs

Type a Type b
Type B
USB Ports
3 USB + 1 USB C
# of Input Sockets
Grounded - Yes
Surge Protection
Surge Protection - Yes
21W Power Strip - Small & Compact - Grounded Dual USB + USB-C - 3 USA Input (PS-3B4U-21W)

Supported Regions

Type B  is supported in following regions:

North America
  • Anguilla
  • Bahamas
  • Barbados
  • Belize
  • Bermuda
  • British Virgin Islands
  • Canada
  • Cayman Islands
  • Dominican Republic
  • El Salvador
  • Guatemala
  • Haiti
  • Honduras
  • Jamaica
  • Mexico
  • Montserrat
  • Nicaragua
  • Panama
  • Trinidad & Tobago
  • Turks and Caicos Islands
  • United States
  • US Virgin Islands
South America
  • Aruba
  • Bonaire
  • Columbia
  • Costa Rica
  • Cuba
  • Ecuador
  • Guyana
  • Puerto Rico
  • Saba
  • Venezuela
  • Japan
  • Taiwan
  • Liberia
  • American Samoa
  • Guam
  • Mariana Islands
  • Marshall Islands
  • Micronesia
  • Midway Islands
  • Palau
  • Wake Island

Adapter Comparison Chart

Customer Reviews
4.8 Based on 21 Reviews
5 ★
4 ★
3 ★
2 ★
1 ★
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Rather stylish surge protector. Unique shape allowed the easy use of both large and small transformers as well as USB charging cords. Flat wall plug enabled it to be easily plugged in behind furniture and extended outward for access. Only downside is the various transformers for multiple devices are bunched in a ball but then they also rather confined to a single area.

J. Griff Bludworth

Works Fine. Works as advertised.

I use it on my nightstand to charge my Kindle, tablet, and phone. I like the compact size. It will work great to take with me when I travel too.


Great for travel

I really like not having to remember to take a plug for my phone anymore. The USB plugs reduce my need for them


Small enough to carry ..

I just don™t like 1 thing . When i was getting it I thought the button on the top cuts all electricity but it is just ( activate/ deactivate) for USB :(

Otilio L.

Cord not long enough

Product is great, it would be nice to have the option of choosing longer cords, 5ft does not work for most places.

Not Sure Which is Right for You?

Be protected in any scenario with a World Travel Adapter Kit!

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Ceptics World Travel Adapter Kit | 2 USB + 2 US Outlets - Grounded
Need customer support? We are here for you.
Standard:. The PS-3B4U-21W-B - 7 in 1 - You can charge 7 devices with only 1 outlet. So you don't have to search around the hotel room looking for extra outlets. It features 3 USB inputs + 3 USA Grounded Inputs + 1 USB-C is more than you need for your travel purposes or home use.

Questions about travel adapter? Read our help page

Do I need a voltage converter? Read here