The Sony TOUGH SF-M128T is a rugged 128 GB SDXC UHS-II memory card designed for professional photographers and demanding conditions. It suits Sony α mirrorless cameras and FX cameras with a UHS-II SD slot, where it handles long bursts of RAW images as well as high-bitrate 4K video recording.
The Sony TOUGH SF-M128T is a rugged 128 GB SDXC UHS-II memory card designed for professional photographers and demanding conditions. It suits Sony α mirrorless cameras and FX cameras with a UHS-II SD slot, where it handles long bursts of RAW images as well as high-bitrate 4K video recording.
The card has no connector ribs and no write-protect switch, so there are no fragile parts that could snap off in the slot.

The card survives 72 hours at a depth of 5 metres, is dustproof and withstands drops from 5 metres. It operates at temperatures from −25 to +85 °C.

Write speeds of up to 150 MB/s extend bursts of high-resolution photos and shorten the wait while the camera empties its buffer memory.
SD Scan Utility monitors the condition of the card and warns you before it reaches its write cycle limit. File Rescue helps recover accidentally deleted photos and videos.
The card is moulded in one piece from resin, making it up to 18 times more resistant to bending than the SD standard requires. It carries an IP68 rating, so it is waterproof (it can be submerged at a depth of 5 metres for up to 72 hours) and dustproof. The card also withstands drops from heights of up to 5 metres.
Alongside its durability it offers a capacity of 128 GB and fast data transfer – up to 277 MB/s read and up to 150 MB/s write. It also supports V60 Video Speed Class, ensuring stable recording even in 4K resolution.
Key features:
| Model | SF-M128T (SF-M TOUGH) |
|---|---|
| Card type | SDXC |
| Capacity | 128 GB |
| Usable capacity | 115.2 GB |
| Interface | UHS-II |
| Read speed | up to 277 MB/s (UHS-II), up to 95 MB/s (UHS-I, SDR104) |
| Write speed | up to 150 MB/s (UHS-II), up to 90 MB/s (UHS-I, SDR104) |
| Speed classes | Class 10, UHS Speed Class 3 (U3), Video Speed Class V60 |
| Software | File Rescue (file recovery), SD Scan Utility (card condition) |
| Protection rating | IP68 (dust and water) |
|---|---|
| Water | immersion at a depth of 5 m for up to 72 hours |
| Drop | from a height of up to 5 m |
| Bending | 18× stronger than the SD standard bending test specification (10 N) |
| Construction | one-piece moulded, rib-less, no write-protect switch |
| Operating temperature | −25 to +85 °C (non-condensing) |
| Dimensions (W × H × D) | 24 × 32 × 2.1 mm |
|---|---|
| Weight | 2 g |
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