# One Beat OB3W3CS Cube Outlet Extender with 3 USB Ports

One Beat OB3W3CS is a compact, cube-shaped wall outlet extender with three AC outlets and three USB charging ports, including one USB-C. It offers extra plug positions without an extension cord or surge protection, a trade-off to weigh for travel and cruise-cabin use.

- [Original product page](https://best-deals.pro/product/one-beat-ob3w3cs-cube-outlet-extender-usb)
- [View offer](https://best-deals.pro/visit/one-beat-ob3w3cs-cube-outlet-extender-usb)
- Market: US
- Language: en-US
- Currency: USD
- Brand: One Beat
- Model: OB3W3CS
- Category: Tools & Garden > Electrical & Plumbing
- Price: 8.99 USD
- Previous price: 11.99 USD
- Discount: 25%
- Price checked: 2026-11-12T10:50:54.200Z
- Rating: 4.8 / 5
- Reviews: 3355

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Three AC outlets are described as arranged on three sides to reduce plug blocking.
- Three USB ports include one USB-C port, for charging devices directly without using an AC outlet.
- No surge protection and no extension cord, which the listing presents as suitable for cruise travel.
- Compact cube format is intended for packing and use in travel, dorm, home, or office.

## Pros

- Combines three AC outlets with three USB charging ports in a single wall plug.
- USB-C is included alongside USB ports for a broader mix of charging cables.
- Three-sided outlet placement may help keep adjacent sockets accessible.
- Compact cube design is easy to pack compared with a corded power strip.

## Cons

- It does not provide surge protection, so it is not a substitute for a surge-protected power strip where that protection is needed.
- It plugs directly into the wall and has no extension cord, limiting placement to the outlet location.

## Specifications

### Identity
- Brand: One Beat
- Model: OB3W3CS
- Color: White
- USB ports: 3
- Form factor: Cube
### Electrical and charging
- Voltage: 125 volts
- Maximum current: 3 A
- Electrical rating: Electrical Rating:125V, 60 Hz 15A, 1875W Max
- USB output: USB Output: 5V DC 3.1A TOTAL
- USB-C output: USB-C ports Output: Up to 5V/3A Max, the charging speed is 30% faster.
- USB port output claim: 3 USB ports can detect charged devices and deliver optimum fast charging speed up to 5V/2.4A Max.
- Plug type: Type B - 3 pin \(North American\)
- Surge protection: No Surge Protection
### Dimensions and installation
- Dimensions listed: 2.6"L x 1.8"W
- Alternative size claim: Size:2.6\*2.4\*1.8 Inch.
- Weight listed: 0.11 kg
- Enclosure material: Polycarbonate
### Other claims
- Certification claim: ETL Certified
- Warranty description: 1 Year Product Warranty

## Before you buy

- The listing gives conflicting size and charging details: the dimensions field says 2.6"L x 1.8"W, while another size claim says 2.6\*2.4\*1.8 Inch. It describes a 3A maximum, 5V 3.1A total USB output, USB-C up to 5V/3A, and up to 5V/2.4A per USB port without clearly reconciling shared output. Confirm the exact measurements and how port outputs are allocated before purchase. The listed model is OB3W3CS, while the manufacturer part number is OB3W3C. Cruise acceptance is a manufacturer claim, so check the applicable ship rules.

## A good fit for

- Travelers and cruise passengers wanting a small, cord-free way to add AC outlets and USB charging at a wall socket.
- Dorm, home, or office users who need three additional AC plug positions and three device-charging ports.

## Less suited to

- Anyone who requires surge protection for connected equipment.
- Users who need an extension cord to position outlets away from the wall socket.
- Buyers who need confirmed per-port charging output or exact physical dimensions without checking the listing details.

## Customer feedback

Customer feedback describes the extender as useful in cruise cabins and easy to pack, with positive mentions of its outlet count and device compatibility. Charging experiences are mixed: some customers report good charging, while others report USB ports stopping work after a few days. That concern matters if USB charging is essential, since the listing's output claims do not establish reliability or clarify the available shared output across ports.
- Positive themes: Customers praise its compact size and portability for travel and cruise cabins.
- Positive themes: Feedback highlights the usefulness of the multiple outlets and compatibility with different devices.
- Negative themes: Some customers report USB ports stopping work after a few days.
- Mixed feedback: Charging performance receives mixed feedback, with some reporting satisfactory charging and others describing USB-port problems.

## Frequently asked questions

### Does this outlet extender provide surge protection?
No. The listing explicitly describes it as having no surge protection.
### How many outlets and USB ports does it have?
The listing specifies three AC outlets and three USB ports, including one USB-C. It describes the AC outlets as arranged on three sides.
### Can I rely on the listed dimensions and USB output?
The page gives two different size descriptions and several USB output claims that are not fully reconciled. Check the selected listing for the exact dimensions and shared charging limits.
### Is it approved for every cruise ship?
The manufacturer describes it as cruise-approved, but ship policies can differ. Check the applicable cruise line's rules before packing it.

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## Images

![One Beat OB3W3CS Cube Outlet Extender with 3 USB Ports — 1](https://best-deals.pro/i/qzs2Y8E96gIqMb7QdVTR1fXhFK0nt-YODgagKyBbH3f4vOTkkE-uoFyE55Dx_R6k68iA0HOjKrdB4XjMOefVjwwAeipFvFrrQoHO0g9O3_9F8f1Hv2jcft6l.jpg)

![One Beat OB3W3CS Cube Outlet Extender with 3 USB Ports — 2](https://best-deals.pro/i/QuhxidcMKGVzGqBRjPFT8cPpInUEi22OSXufaC3HkYVlMZOb07QcHHsGK225LyzJE61w7GwU_JJmYkyLrVg4Mit4OJDyUWcUnlAW6mmIrlPWlp8rxiAHlsSN.jpg)

![One Beat OB3W3CS Cube Outlet Extender with 3 USB Ports — 3](https://best-deals.pro/i/dUdF_l2OHoYRd3BSDIRAJET5TadDuhYJa9kOznez2vwL4vU7_YUBGTzL6VwEBKgBBIsqQ7B71WO6UquHBfaKRsls5sASWLoBIKqKk2rOeKdY9V_F7dvWIQpE.jpg)

![One Beat OB3W3CS Cube Outlet Extender with 3 USB Ports — 4](https://best-deals.pro/i/XV8ori1iYScLP4pf-Fraflw2v6KIRQ8KcTO4xVvwETYdDI2KqOsV7sQ902xRdctp2sepwJfC4pRg3ZdLZtKMc1Lmmssm9YKUq93cChtSpPjQNVnwWH-HYaLn.jpg)

![One Beat OB3W3CS Cube Outlet Extender with 3 USB Ports — 5](https://best-deals.pro/i/wkBVMT2yZLiW1dgrLG3PIh1-NC2KtKCQC3-htmSixhBhmq5nucFoAsv50kVGF_PGnab96nhN92mAAHSg6viHuaiP3URYDF5Rsmrs8pXlCKP4RvS_5vtvVE-D.jpg)

![One Beat OB3W3CS Cube Outlet Extender with 3 USB Ports — 6](https://best-deals.pro/i/sl3KRMphGEbegHPNIPtYK_dnJTs57EQcIk6CY4-QBi1UQJHI8FAd-hsLCc8ShzaxGjPJS3uSkWgMRecqAUN7K94B-KZgnXPpmtl2uePgfMJrsQYFXY1jKxiw.jpg)

![One Beat OB3W3CS Cube Outlet Extender with 3 USB Ports — 7](https://best-deals.pro/i/3kzGBORVSpltyKCni9-kYUz22vUZuBnme0yinB6h1VqEKZkOA6cMVsHimxZ0ovrOh1TbXi0bEXRIRRY4nPKVSLIflWSNL0SxFNXZEaxZLxMQy5di7gl7Zd25.jpg)