| Specification | Details |
| Brand | UGREEN |
| Model | CM803 |
| Interface | USB-C + USB-A (dual connector) |
| USB Standard | USB 3.0 / USB 3.2 Gen 1 |
| Card Slots | SD + TF (MicroSD) |
| Supported Cards | SDXC / SDHC / MicroSD / MicroSDXC / MMC |
| Max Capacity | Up to 2TB |
| Data Transfer Speed | Up to 5Gbps (USB) |
| Max Card Speed | Up to ~312 MB/s (with UHS-II cards) |
| Simultaneous Read/Write | Yes (dual card support) |
| OTG Support | Yes |
| Material | Aluminum alloy housing |
| Plug & Play | Yes |
| Compatibility | Windows, macOS, Android, USB-C phones, USB-A laptops |