An SD slot, a TF slot, and a magnet to hold them on the phone. The UGREEN CM898 is a 3-in-1 magnetic card reader that mounts flat on the back of a USB-C iPhone and pulls footage off cards at up to 312MB/s.
Two slots work at once: UHS-II SD at SD 4.0 speeds and TF beside it, each taking cards up to 2TB. The USB link is USB 3.0 at 5Gbps. UGREEN rates the reader for 4K ProRes transfers, and a PD 100W passthrough keeps the phone, or a MacBook, charging while files move. The magnet grips through MagSafe-compatible cases, so the reader sits flat on the phone instead of swinging from the cable.
Key specs
| Card slots | SD (UHS-II, SD 4.0) and TF, up to 2TB each |
| Top read speed | 312MB/s |
| Data link | USB 3.0, 5Gbps |
| Passthrough charging | USB-C PD, 100W |
The obvious rival is Anker's MagGo SD reader, which Digital Camera World's Paul Hatton scored 4 out of 5 in September 2025 and ranked among the tidiest iPhone-specific card readers around; it reads at the same 312MB/s and builds in its own USB-C cable, where the UGREEN goes with a bare USB-C port on the edge. UGREEN's pitch is the mount: the reader stays parked on the phone while the cards do the traveling.
The CM898 is new enough that hands-on coverage hasn't landed yet, so this is a first look, not a verdict.
iPhoners pulling footage off a camera's SD card get the offload on the phone itself, no Mac in the middle. It ships in black, works with Android and iPad too, and needs no driver.
