The iPhone 15 Pro's USB-C port supports 10Gbps transfers and direct ProRes 4K 60fps recording to external SSDs — but you need a drive that sustains at least 220MB/s write speeds. We tested and ranked the top portable SSDs for the job, from the rugged Samsung T7 Shield to the MagSafe-ready SanDisk Creator Phone SSD.
the iphone 15 pro and 15 pro max swapped lightning for usb-c, and with that came a superpower: you can record apple prores 4k at 60 frames per second directly to an external ssd.1 no more filling up internal storage mid-scene, no more waiting to offload before the next take. but there's a catch — the drive needs to sustain at least 220mb/s write speed over a usb 3 10gbps connection, or you'll drop frames.1
here are the portable ssds that actually deliver.
| pick | sustained write | ruggedness | attachment |
|---|---|---|---|
| samsung t7 shield | 1050mb/s read, 1000mb/s write | ip65, 3m drop | cable |
| sandisk creator phone ssd | 1000mb/s read, 950mb/s write | ip65 | magsafe |
| sandisk extreme portable ssd v2 | 1050mb/s read, 1000mb/s write | ip65, 2m drop | cable |
| samsung t9 | 2000mb/s read, 2000mb/s write | no ip rating, 3m drop | cable |
| kingston xs2000 | 2000mb/s read, 2000mb/s write | ip55 | cable |
the gold standard for prores recording. the t7 shield hits 1050mb/s read and 1000mb/s write — well above the 220mb/s threshold — with excellent thermal management that keeps performance steady during long recording sessions.1 it's ip65-rated against dust and water jets, and survives drops from up to 3 meters.1 the rubberized exterior wraps a compact metal body, making it the most confidence-inspiring drive to toss in a camera bag.
if you only buy one ssd for your iphone 15 pro, this is it.
this is the only drive on the list designed specifically for iphone. the sandisk creator phone ssd has a built-in magsafe ring that sticks directly to the back of your iphone 15 pro — no dangling cable, no velcro, no cage required.2 it's ip65-rated and hits 1000mb/s read and 950mb/s write, which is plenty for prores 4k 60fps.2
the trade-off? you're locked into a specific form factor, and the drive runs a little warmer than the t7 shield under sustained load. but for run-and-gun shooting where every second counts, the magsafe convenience is hard to beat.
the sandisk extreme v2 has been a content creator favorite for years, and for good reason. it matches the t7 shield on speed (1050mb/s read, 1000mb/s write) and adds ip65 dust/water resistance plus 2-meter drop protection.1 the carabiner loop lets you clip it to a strap or cage, and the rubber bumper absorbs bumps that would dent a bare metal drive.
it's slightly larger than the t7 shield, but the proven track record and wide compatibility make it a safe bet for anyone who shoots in less-than-studio conditions.
if you regularly offload footage to a workstation or edit directly off the drive, the samsung t9 is worth the premium. it pushes 2000mb/s read and 2000mb/s write — double the t7 shield — which means 4tb of prores footage transfers in minutes, not hours.3
the t9 lacks an ip rating, so it's not for rainy shoots, but it survives 3-meter drops and has a textured fabric exterior that dissipates heat well. for studio or hybrid shooters who need both recording speed and fast turnaround, this is the drive.
the kingston xs2000 is tiny — roughly the size of a pack of gum — and still delivers 2000mb/s read and 2000mb/s write.3 it's ip55-rated (dust and water spray), and the included usb-c cable is short enough to keep the drive close to the phone without a massive loop.
the small size is both a feature and a liability: it's easy to lose in a bag, and the detachable cable means one more thing to forget. but if you're rigging to a gimbal or a small cage, the xs2000's footprint is unmatched.
burst speeds are marketing numbers. what matters for video is sustained write — the speed the drive can maintain for minutes, not seconds. the iphone 15 pro's prores 4k 60fps codec demands at least 220mb/s continuous write.1 all the drives above exceed that, but cheaper or older ssds can overheat and throttle below the threshold after 30-60 seconds, causing dropped frames or a recording error.
the t7 shield and sandisk extreme v2 are particularly good at maintaining speed under load thanks to their thermal designs.1
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