This article covers DEVMO USB-C オス Type C.

Overview

The DEVMO USB-C Male to USB-A Female Adapter (2-Pack) is a no-nonsense converter for bridging modern USB-C devices with legacy USB-A peripherals. Each adapter is incredibly compact (31×15×8 mm) and lightweight, making it ideal for on-the-go use. It supports USB 2.0, 3.0, and 3.1 data transfer rates up to 5 Gbps, and also includes OTG (On-The-Go) functionality, allowing you to connect USB flash drives, mice, keyboards, or card readers directly to your smartphone or tablet.

Connectivity & Compatibility

This adapter features a USB-C male plug on one end and a USB 3.1 Type-A female port on the other. It is compatible with any USB-C host that supports OTG—most Android smartphones, recent MacBooks, Chromebooks, and Windows tablets should work. Simply plug the USB-C end into your device and attach your USB-A peripheral. The adapter is backward compatible: USB 2.0, 3.0, and 3.1 devices all function normally, with speed negotiated automatically. Note that this adapter is for data transfer only; it does not support Power Delivery (PD) charging passthrough. If you need to charge via USB-C while using a USB-A device, look for a PD-capable hub.

Product Info

First released around 2019, the DEVMO adapter is widely available on Japanese online retailers as a 2-pack at roughly ¥3,500. Warranty coverage follows online retailers's standard policy for third-party accessories. The package includes only the two adapters; no carrying case or additional cables. Market positioning: entry-level USB-C to USB-A converter with OTG support, emphasizing value and simplicity over high-speed or power features.

Best Use Cases

  • Mobile users (smartphones/tablets) who need to connect USB flash drives or SD card readers directly: OTG support makes file transfers quick without a PC.
  • Laptop users with only USB-C ports who still rely on USB-A peripherals: This adapter saves you from buying new USB-C versions of your mouse, keyboard, or memory stick.
  • Anyone who loses small accessories easily: The 2-pack provides a backup, so you always have one handy.
  • In-car USB device connections: Plug the adapter into your car's USB-C port to read data from older USB-A music players or dashcams.
    Best avoided if: You require USB Power Delivery (PD) charging or need USB 3.1 Gen2 10 Gbps speeds.

Product Disclosure (Amazon)

  • Manufacturer: DEVMO
  • Seller: Amazon US
  • Fulfilled by: Amazon US
  • ASIN: B07ZYXWF6V
  • Note: This article covers a manufacturer-made product based on Amazon listing details.