Conceptronic DONN03G USB-C to USB-A OTG Adapter 2-Pack — up to 10 Gbit/s
Up to 10 Gbit/s2-packAluminiumOTG
The Conceptronic DONN03G is a USB-C (male) to USB-A (female) OTG adapter (2-pack) with up to 10 Gbit/s data transfer. It lets you plug ordinary USB-A devices — flash drives, card readers, keyboards, mice, external drives, MIDI keyboards — into a phone, tablet, laptop or handheld console that only has USB-C ports.
OTG (On-The-Go) means the USB-C device acts as the host and powers what you plug in. Almost every current laptop, MacBook, iPad with USB-C and Android phone supports it; on older phones check that USB OTG is enabled in the settings.
Before you order: Direction matters: the USB-C end plugs into your computer, phone or tablet; the USB-A socket takes the device. It does not let a USB-C device plug into a USB-A computer port.
What's in the Box
- 2 × Conceptronic DONN03G USB-C (male) to USB-A (female) OTG adapters
- Multilingual quick installation guide
What It Means in Practice
- At up to 10 Gbit/s even a fast USB-A SSD can run at full speed, provided the USB-C port on the computer is 10 Gbit/s too.
- Power for the attached device comes from the USB-C port: a bus-powered 2.5" hard drive may need more than a phone can supply — laptops are fine.
- Plug-and-play on Windows, macOS, iPadOS, Android, ChromeOS and Linux — no driver for the adapter itself.
What Will Not Work
- No video: a USB-A device cannot output video, and the adapter does not add DisplayPort.
- It is not a charger adapter: you cannot plug a USB-C phone into a USB-A charger with it (that needs the opposite, USB-A male to USB-C female).
- No USB Power Delivery pass-through — the computer cannot be charged through it.
- Do not confuse it with DONN10G, which is the opposite direction (USB-A male to USB-C female).
Key Features
USB-A socket on USB-C
Connect standard USB-A sticks, readers, keyboards and mice to USB-C-only laptops, tablets and phones.
Up to 10 Gbit/s
Rated up to 10 Gbit/s by Conceptronic — headroom for the fastest USB-A SSDs.
OTG host mode
The USB-C device becomes the host and powers the connected accessory — no extra power supply for small devices.
Two in the box
One for the laptop bag, one for the desk, both in aluminium housings.
Technical Specifications
| Identification |
| Part Number |
DONN03G |
| EAN / GTIN |
4015867230817 |
| Brand |
Conceptronic |
| Official name |
DONN03G USB-C to USB-A OTG Adapter 2-Pack, 10Gbps, USB-C Male to USB-A Female |
| Connectivity |
| Connector 1 |
USB-C plug (male) |
| Connector 2 |
USB-A socket (female) |
| Max data rate |
Up to 10 Gbit/s |
| Physical |
| Pack quantity |
2 adapters |
| Housing |
Aluminium |
| Dimensions |
15 x 7 x 32 mm |
| Weight |
0.01 kg |
| Colour |
Grey |
| Warranty |
| Warranty |
1-Year Warranty (Singular) |
| Manufacturer Term |
The manufacturer does not publish a warranty term — claims handled through Singular |
Frequently Asked Questions
Will a USB stick work on my iPhone 15 or newer?
Yes for photos and files via the Files app, as long as the stick is formatted exFAT or FAT32 (NTFS is read-only or unsupported on iOS). Very power-hungry drives may not start from a phone.
Can I connect a USB hub to it?
Yes. A small USB-A hub works; use a powered hub if you connect several drives or power-hungry devices.
Does it work with a MacBook?
Yes — any MacBook, Mac mini, iMac or iPad with USB-C or Thunderbolt ports accepts it as a standard USB connection.
Singular Expert Insight · Buyer's Guide
Two aluminium OTG adapters rated up to 10 Gbit/s cover the usual problem of a USB-C laptop, tablet or handheld console meeting USB-A sticks, drives and keyboards — one can live in the bag and one on the desk. Conceptronic also lists gaming handhelds as a use. Fast storage to pair them with is in our
external SSDs.
✓ Buy it if you want two compact USB-C to USB-A adapters for storage and accessories.
✕ Skip it if you need to plug USB-C cables into USB-A ports — that is the reverse adapter.
→ Also consider A USB-C hub if you need several USB-A ports at once; a USB-C flash drive if you only need storage.
Not sure it fits your setup? Send us the model of your rack, switch or device and we will check compatibility before you order.