AmazonBasics CU23011W Tap-Adapter: Top Performance, Imperfect Design

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Daniel Sauvageau

Daniel Sauvageau is a Contributing Writer for Tom's Hardware US. He’s known for his feature tear-downs of components and peripherals.

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17 comments
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  • Daniel Sauvageau
    Readers wanted a break from generic no-name adapters. Here's something a little different.
  • Ncogneto
    Where the two USB outlets connected in parallel?
  • Chettone
    Going cheap can be expensive.
  • Ncogneto
    you never let us know if the two outputs where indeed connected in parallel.
  • Daniel Sauvageau
    1930 said:
    you never let us know if the two outputs where indeed connected in parallel.

    They always are. Only one transformer, so no independent regulation. Only one transformer secondary and only one synchronous rectifier, so no isolation between outputs. No electronic fuses or PPTCs either, not really a problem when output current is only 4A with limited duty cycle.

    I doubt we'll be seeing independently regulated 5V outputs in any adapter. At most, we might get a DC-DC converter in QC/USB-PD adapters with some fixed 5V ports.
  • ElectrO_90
    Americans and the use of Metric... doesn't compute! I need my 7/87ths of a inch measurement ;)
  • Daniel Sauvageau
    2272244 said:
    Americans and the use of Metric... doesn't compute! I need my 7/87ths of a inch measurement ;)
    I'm Canadian :)
  • Onus
    I really enjoy these teardowns. Between you & Aris, it keeps my inner geek well-fed. When I buy a multi-socket adapter of most any kind, often it is to put somewhere, plug in devices that wouldn't fit otherwise, and just leave it, so I'm less concerned about the physical wear issues than a frequent-plugger might be.
  • zodiacfml
    It's not bad till that wiggly part. It will just not pass much current. This will burn soon when used in the kitchen.
    I have an extension cord with USB charging ports and six AC outlets, it just costs a bit more but certainly safer, convenient, and can pass more current.
  • froozeball
    Wonderful dissection as always Sir!

    It's like watching Auguste Dupin or Sherlock Holmes unravel the threads in a mystery, forming an inescapable conclusion.

    Thanks for putting this type of product on my radar M. Sauvageau!
  • gasaraki
    Thank you. I hope for more name brand adapters/chargers reviews like Belkin, APC, Anker, etc. Specifically the APC P6WU2. I use those all around my house. It would be nice to see what the difference between a $10 AmazonBasic vs a $15 APC one. Thank you.
  • ikefu
    Do you take request? I'd love to mail you an in-wall outlet with USB ports built in to tear down and see how those stack up given their limited internal space.
  • Giroro
    3 LMFAO references in a review of a Tap-Adapter?
    I'm ok with this.
  • Daniel Sauvageau
    138134 said:
    Thank you. I hope for more name brand adapters/chargers reviews like Belkin, APC, Anker, etc. Specifically the APC P6WU2. I use those all around my house. It would be nice to see what the difference between a $10 AmazonBasic vs a $15 APC one. Thank you.


    274545 said:
    Do you take request? I'd love to mail you an in-wall outlet with USB ports built in to tear down and see how those stack up given their limited internal space.

    Sure, I'll consider 'special requests' when they come along. Can't say how long it'll be until I get to them though.

    For those who wish to send things for review, international shipping to Canada is usually disproportionately expensive for low value items and there is the possibility of customs getting involved which can add $20+ to costs. It may make more sense to gift-order it through my Amazon list ( http://a.co/abxPoTr ) than ship it yourself.
  • Giroro
    Are there any products in this device class (small surge protector combined with USB) that are worthy of a recommendation? Perhaps the Belkin SurgePlus Swivel Travel adapter?
    Because it seems like many of the popular products in this category on amazon are not rated for safety
  • Daniel Sauvageau
    1886042 said:
    Are there any products in this device class (small surge protector combined with USB) that are worthy of a recommendation?

    Recommendations will have to wait until I've seen more of these. At the moment, this is the only one I've got and can't recommend it due to the wiggle flaw.
  • test_purch1
    Test Automation comment 1526380748447
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