ROOTOMA Japan Travel Adapter 3 Way 4 Fast Charging USB (QC3.0/PD20W) – 7‑in‑1 UK to Japan
Product description
What matters most
If you travel to Japan and need to power multiple devices from a single outlet, this ROOTOMA 7‑in‑1 travel adapter presents a practical, compact solution. It offers 3 UK outlets, 2 USB‑A ports (one with QC) and 2 USB‑C ports (5V 3.1A/PD20W), enabling you to charge up to seven devices at once. The 1.5m cable helps reach outlets that might be a bit tucked away, which is handy in hotel rooms or shared residences.

Practical design and safety notes
On the surface, the cube form factor is convenient for packing and everyday use. The unit is built from fireproof PC material and is rated up to 1875W (125V/15A), which means it can handle typical high‑wattage household appliances such as hairdryers or kettles in Japan when used within limits. It is important to note that this is not a voltage converter, power delivery is designed for devices that match the port specifications. If you rely on laptops that require higher voltages, the USB‑C PD20W port is primarily suitable for phones, tablets and similar devices, not for higher‑voltage laptops.

What stands out in day‑to‑day use


For travellers or daily travellers in Japan, the 1.5m cable is a real bonus. It allows you to reach wall sockets that aren’t conveniently located, reducing the need to rearrange bags or furniture. The PD20W USB‑C port can noticeably speed up charging for compatible devices (for example, charging a phone rapidly when you’re short on time). However, you’ll want to manage expectations: the USB‑C port’s PD20W capacity is not a universal fast charger for every device, and some laptops still require dedicated chargers or higher voltage supplies.

Where it may fall short
If your workflow relies on charging a high‑voltage laptop or devices that demand more than 20W via USB‑C, this adapter won’t replace a proper charger. The unit’s power handling tops out at 1875W, so very power‑hungry appliances should be used with caution and within the stated limits. In practice, that means high‑wattage appliances are better off plugged directly into a mains outlet or a high‑capacity converter where appropriate.

Who it’s for
This ROOTOMA model suits travellers who need to consolidate charging for phones, tablets and small USB‑C devices, especially when moving between hotels or shared accommodations in Japan. It also works well for daily use at home or in office setups where multiple devices need charging from a single wall outlet.



Who it isn’t ideal for
If you frequently rely on large laptops, hair dryers, or other high‑wattage devices, you may feel the limitations of a 1875W cap and a non‑converter design. If you require voltage conversion, this adaptor is not the right tool and could lead to ineffective charging or safety concerns.

Before you buy: what to check
- Confirm that your devices are compatible with USB‑A QC and USB‑C PD20W charging limits.
- Remember the product is not a voltage converter, it adapts plug types and provides USB charging options, but won’t convert domestic voltage.
- Consider your travel patterns: if you frequently need access to multiple outlets in tight spaces, the 1.5m lead and 3 UK sockets are a meaningful convenience.
Practical use case


Imagine you’re staying in a compact hotel room in Tokyo. You’ve got a mobile, a tablet, wireless buds, and a compact camera battery to top up. You can plug the camera battery into a USB‑A port, charge your phone via USB‑C PD20W, and keep a spare device powered through the USB‑A port, all from one wall outlet. The 1.5m cable means you don’t have to crawl behind furniture to reach power, which feels surprisingly practical after a long day of sightseeing.
FAQ (brief and practical)
- Can I charge a laptop with this? Some smaller laptops may charge via USB‑C PD, but high‑voltage laptops generally need a higher wattage or dedicated charger. Check device requirements first.
- Does it convert voltage from UK to Japan? No. It adapts the plug format and provides USB charging outputs, but you must ensure your devices are compatible with the local voltage.
- How many devices can I charge at once? Up to seven devices, thanks to 3 UK outlets, 2 USB‑A ports and 2 USB‑C ports.
Is it worth it?
Worth considering if you prioritise a compact, multi‑outlet charging hub for travel and routine use in Japan, and you don’t need a voltage converter. If your charging needs include high‑wattage laptops or hair appliances, you may want to plan alternatives or additional adapters.
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