This is the English edition of a review from my Japanese YouTube channel, iestaLife. I review gadgets from my home studio in Japan, so product links go to Amazon Japan.
Quick take
Sanwa Supply’s USB-C rotating adapter does something an ordinary L-shaped adapter can’t: it bends 90 degrees and then twists, with 540 degrees of rotation in total. It weighs 3.2 g, is rated for up to 240 W charging and USB 2.0 data, and fixed a cable that kept sticking straight up on my desk. It does not support video output.
What I tested
- Sanwa Supply USB 2.0 Type-C adapter (540° rotation, 240 W), black
- An UGREEN L-shaped USB-C adapter I already owned, for comparison
- Charging an iPhone, routing the cable on my portable MagSafe charging stand, and a data transfer test on my MacBook Pro
Comparison
| Sanwa rotating adapter | UGREEN L-shaped adapter | |
|---|---|---|
 |  | |
| How it bends | Rotates 540°, bends and then twists | Fixed at 90° |
| Measured weight | 3.2 g | 3.7 g |
| Video output | Not supported | Supported |
What I found
- The problem it solved: I run a magnetic USB-C connector into a MagSafe charger sitting on a power bank. With a 90° adapter, the cable pointed straight up. With the rotating adapter, I could lay it flat and send it sideways.
- Where it really helps: devices pushed against a wall, or with a vertically oriented port, where an L-shaped adapter would force you to turn the whole device on its side.
- Charging and data: iPhone charging worked, and data transfer worked on my MacBook Pro. The listing notes that compatibility can depend on the computer.
- Size: the head is small, so it should fit most iPhone cases unless the opening around the port is very thick.
- Durability: it feels reasonably well made, but the joint looks like it could wear out if you twist it constantly. I haven’t used it long enough to judge durability.
Who it’s for
- Good fit if you keep buying L-shaped adapters for different angles, place gear against a wall, or want tidier cables around chargers and power banks.
- Look elsewhere if you need to connect a monitor or need fast data transfer. This is a USB 2.0 adapter; for video, pick an L-shaped adapter that supports display output.
Watch the review
The video is in Japanese, but the bending and twisting are easy to follow visually. The cable-routing demo starts at around 3:50.
Limitations
I tested one unit for a short period. At the time of recording it was ¥1,255 in black and ¥1,156 in white on Amazon Japan. Sanwa Supply is a Japanese brand, so this exact model may be hard to find outside Japan; similar 540° rotating adapters exist from other makers.
Products
Sanwa Supply USB 2.0 Type-C rotating adapter (540°, 240 W): on Amazon Japan
UGREEN L-shaped USB-C adapter (video output supported): on Amazon Japan
The Amazon Japan links above are affiliate links. As an Amazon Associate, I earn from qualifying purchases. Check the listing for the exact model, current price and shipping availability in your region.
More reviews in English
All Chargers & Cables (29) →Browse all English reviews →
This review is also available in Japanese.