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[ETL Listed] Cable Matters 3-Pack 3 Outlet Wall Adapter (Grounded Cube Tap, Outlet Splitter, 3 Way Plug Adapter, 3-Prong Power Splitter), White
Cable Matters

Cable Matters 3-Pack 3 Outlet Wall Adapter

Bottom line: The Cable Matters 3-Pack 3 Outlet Wall Adapter ($9.99 on Amazon as of 2026-10-06): Turns one grounded outlet into 3 AC outlets, no power strip bulk; main trade-off: two adapters cannot fit side by side on the same duplex outlet.

$9.99

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Buy on Amazon — $9.99 Compare to similar accessories

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

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.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Turns one grounded outlet into 3 AC outlets, no power strip bulk
  • ✓ 90-degree design lets big wall warts seat without overhanging
  • ✓ 3-pack covers home office, nightstand, and travel bag
  • ✓ Accepts both 3-prong grounded and 2-prong polarized cords

Cons

  • ✗ Two adapters cannot fit side by side on the same duplex outlet
  • ✗ No surge protection, unlike a comparable power strip
  • ✗ No USB ports, so phone bricks still occupy an AC slot
  • ✗ Sideways orientation may aim cords toward furniture in some outlets

Manufacturer description

The Cable Matters 3-Pack 3 Outlet Wall Adapter turns a single grounded receptacle into three AC outlets without the bulk of a power strip, and its 90-degree body is the reason it works where cube taps usually fail. Because the plug face sits sideways against the wall, oversized wall warts and brick-style adapters seat fully instead of overhanging the outlet below, so you keep access to the second receptacle on a standard duplex plate. That geometry also makes it a good fit behind a desk, a couch, or an entertainment center where a strip would push furniture off the wall by an inch or two…

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SpecPicks Verdict

SpecPicks scored Cable Matters 3-Pack 3 Outlet Wall Adapter using a rating × review-volume × price-fit model applied to published specs and reviews across the accessories category. Cable Matters'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.

Frequently Asked Questions

Will this block the other outlet on the plate?

No. The 90-degree design keeps large adapters from overhanging the adjacent receptacle. But two of these cube taps cannot fit side by side on the same duplex outlet.

Does it work with 2-prong plugs?

Yes. It accepts 3-prong grounded cords and 2-prong polarized cords, so most household and travel electronics plug in directly.

Does this have surge protection?

Surge protection is not among the listed features. Treat it as an outlet splitter, not a surge protector, and keep sensitive gear on a dedicated surge strip.

How many do you get and what does the pack cost?

Three white adapters per pack from Cable Matters. Pricing changes often, so check the current Amazon listing before ordering.

Is it safety certified?

Yes. It is ETL listed, which appears in the product title. For load ratings and warranty terms, check the manufacturer's product listing.

Key Features

  • Sturdy 3 Wall Outlet Extender: This multi plug wall outlet adapter converts a single grounded outlet into 3 additional AC electrical outlets, offering a space-saving solution without the bulk of a traditional power strip.
  • 90 Degree Outlet Adapter: The innovative 90-degree design allows large wall warts and adapters to fit without blocking adjacent outlets, making this electrical outlet extender perfect for tight spaces. Note: It won’t block the other outlet, but two of these adapters cannot fit side by side on the same wall outlet.
  • Cost-Effective 3-Pack: This set of three power outlet extenders ensures extra wall plug access for travel or use around your home.
  • Space-Saving Design: The compact 3 outlet cube tap (also known as plug splitter or power outlet splitter) is ideal for use behind furniture or in tight spaces, adding additional outlets in hotel rooms, conference rooms, or areas with limited AC receptacles.
  • Versatile Compatibility: Works with 3-prong grounded cords and 2-prong polarized electrical cords, this multi plug outlet solution is perfect for sideways AC receptacles and offers a convenient way to expand power access.

Full Specifications

BrandCable Matters
ColorWhite
Input Voltage125 Volts
Output Voltage125 Volts
Cost-Effective 3-PackThis set of three power outlet extenders ensures extra wall plug access for travel or use around your home.
Item dimensions L x W x H2.48 x 1.65 x 1.65 inches
Full listing title[ETL Listed] Cable Matters 3-Pack 3 Outlet Wall Adapter (Grounded Cube Tap, Outlet Splitter, 3 Way Plug Adapter, 3-Prong Power Splitter), White

Ready to buy?

[ETL Listed] Cable Matters 3-Pack 3 Outlet Wall Adapter (Grounded Cube Tap, Outlet Splitter, 3 Way Plug Adapter, 3-Prong Power Splitter), White 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 — $9.99

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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[ETL Listed] Cable Matters 3-Pack 3 Outlet Wall Adapter (Grounded Cube Tap, Outlet Splitter, 3 Way Plug Adapter, 3-Prong Power Splitter), White
$9.99
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