Best Portable SSD for iPhone 15 Pro (2026)
iPhone 15 Pro’s USB-C port is USB 3, up to 10 Gb/s, and Apple’s footnote says that speed needs a USB 3 cable. The cable in the phone box is not that cable. Apple’s ProRes page lets iPhone 15 Pro models record ProRes straight to external storage: the drive must be exFAT, password protection is refused, the cable must be USB 3 at 10 Gbit/s or faster, and the drive must write at least 220 MB/s for 4K60 ProRes and 440 MB/s for 4K120 ProRes. A 2,000 MB/s Gen 2×2 badge asks for a 20 Gbps host this phone’s spec does not list.
Use the Samsung Portable SSD T7. Samsung rates the T7 at USB 3.2 Gen 2, 10 Gbps, with sequential write up to 1,000 MB/s on a Gen 2 host with UASP. That published write sits above Apple’s 220 and 440 MB/s floors. The phone still has to accept the drive, the volume has to be exFAT, and the optional password has to stay off. The box includes a USB-C to C cable.
Our Top Picks at a Glance
Reviewed October 2026 · Specs checked against the manufacturer pages named below
USB 3.2 Gen 2, write rated to 1,000 MB/s on a Gen 2 host, USB-C cable in the box.
Check Price at Amazon Read full review ↓28.9 g and a USB-C cable. The 2,000 MB/s rating needs Gen 2×2, which this phone does not list.
Check Price at Amazon Read full review ↓OWC lists 990 MB/s on a 10 Gb/s USB-C port. The 3,189 MB/s cell is an Apple Silicon Mac.
Check Price at Amazon Read full review ↓Disclosure: This page contains affiliate links. As an Amazon Associate affiliate, we earn a small commission from qualifying purchases at no extra cost to you.
How We Tested
Port lists and transfer figures below are copied from the manufacturer pages named in each section. This page does not add its own benchmark.
The portable SSDs
Samsung Portable SSD T7 View on Amazon
| Line | MU-PC, USB 3.2 Gen 2 |
|---|---|
| Rated speed | Up to 1,050 MB/s read, 1,000 MB/s write |
| Condition | Host and cable must support USB 3.2 Gen 2, with UASP on |
| Size | 85 × 57 × 8.0 mm |
| Box | Drive, USB-C to C cable, USB-C to A cable |
Apple’s floors are 220 MB/s for 4K60 ProRes and 440 MB/s for 4K120 ProRes. Samsung’s write rating is up to 1,000 MB/s, on a host and cable that support USB 3.2 Gen 2 with UASP. This phone’s port is USB 3 up to 10 Gb/s, which is that Gen 2 class. Do not read the 1,000 MB/s line as a measurement taken on the phone.
Format the drive exFAT in the Files app. Password-encrypted drives are not supported, so leave the T7’s AES 256 option off. Before each 4K120 session, Apple says to reformat the drive. To record onto the phone itself, unplug the SSD. The same ProRes page also lists iPhone 16 Pro and iPhone 17 Pro for external recording, with the same exFAT and 10 Gbit/s cable lines. The 10 Gb/s ceiling in this intro is the 15 Pro spec.
- The interface is 10 Gbps, which is the USB mode these hosts actually run
- Both cable types are in the box
- Samsung lists 500 GB through 4 TB
- Optional password can be left off
- There is no 20 Gbps or 40 Gbps mode on this drive
- The 1,050 / 1,000 figures need Gen 2 and UASP
- A password-locked drive is rejected for iPhone ProRes
- It will not use a Thunderbolt 4 pipe
Kingston XS2000 View on Amazon
| Interface | USB 3.2 Gen 2×2 |
|---|---|
| Rated speed | 2,000 MB/s read, 2,000 MB/s write |
| Kingston’s FAQ | A Thunderbolt or USB4 port does not deliver 2,000 MB/s |
| Size | 69.54 × 32.58 × 13.5 mm, 28.9 g |
| Box | Drive, rubber sleeve, 12-inch USB-C to C cable |
Kingston lists iOS and iPadOS among supported systems, and includes a USB-C cable. The drive is 69.54 × 32.58 × 13.5 mm and 28.9 g. Its 2,000 MB/s read and write rating is USB 3.2 Gen 2×2. iPhone 15 Pro’s spec lists USB 3 up to 10 Gb/s. The phone will not grow a Gen 2×2 port to match the sticker.
Format it exFAT and skip any password. Apple’s 440 MB/s floor for 4K120 is the number the recording cares about. The 2,000 MB/s number is the Gen 2×2 lab line on Kingston’s page. Put the sleeve on for the IP55 rating, and reformat before a 4K120 session.
- 2,000 MB/s is real on a USB 3.2 Gen 2×2 host
- Pocket size, 28.9 g
- 500 GB through 4 TB
- Kingston lists iOS and iPadOS
- The 2,000 MB/s line needs a Gen 2×2 port
- Kingston says Thunderbolt and USB4 commonly stop at 10 Gbps for this drive
- The included cable is USB-C to C only
- IP55 applies with the sleeve fitted
OWC Express 1M2 View on Amazon
| Interface | USB4, also used on Thunderbolt ports |
|---|---|
| Apple Silicon row | 3,189 MB/s on USB4 at 40 Gb/s |
| PC row | 3,836 MB/s on USB4 or Thunderbolt 4 |
| 10 Gbps row | 990 MB/s on a 10 Gb/s USB-C port |
| Form | Enclosure for an M.2 NVMe, or a ready-to-run drive |
OWC’s compatibility copy names Macs, PCs, and iPads. It does not name iPhone. If the enclosure mounts in the Files app, the speed cell for a 10 Gb/s USB-C port is 990 MB/s, which is above Apple’s 440 MB/s floor for 4K120 ProRes. The 3,189 MB/s cell is Apple Silicon on USB4. This phone is USB 3 at 10 Gb/s.
Format whatever NVMe is inside as exFAT, with no password. A ready-to-run unit still has to follow that format rule. Confirm the mount before a shoot. The T7 is the drive whose cable and 10 Gbps rating are already aimed at this port.
- Speaks USB4, so a Thunderbolt 4 Mac can use the 40 Gb/s mode
- OWC prints a separate number for Apple Silicon
- The 10 Gbps row is published, so a slower port is not a surprise
- Works as a finished drive or with your own NVMe
- 3,836 MB/s is the PC row, not the Apple Silicon row
- A 10 Gb/s port is the 990 MB/s row
- The stick inside a DIY build sets the ceiling under those figures
- It is an enclosure story, not a sealed Thunderbolt 5 brick
exFAT, no password, a 10 Gbit/s cable, and a write floor of 220 or 440 MB/s.
Comparison Table
| Drive | Rating to ignore on this phone | What to set |
|---|---|---|
| T7 | Any 40 Gb/s claim | exFAT, password off |
| XS2000 | 2,000 MB/s Gen 2×2 | exFAT, password off |
| Express 1M2 | 3,189 MB/s Apple Silicon | exFAT, and confirm it mounts |
Frequently Asked Questions
Does the cable in the iPhone box run at 10 Gb/s?
Apple’s 15 Pro spec says USB 3 up to 10 Gb/s and that a USB 3 cable at 10 Gb/s is required. Use the drive’s USB-C cable.
What format does ProRes want?
exFAT. Password-encrypted drives are not supported. Reformat before each 4K120 session.
How fast does the drive have to write?
At least 220 MB/s for 4K60 ProRes and 440 MB/s for 4K120 ProRes. A slower drive can show a Slow Recording Speed message.
Do iPhone 16 Pro and 17 Pro use this same page’s port number?
Apple’s ProRes page includes those models for external USB-C recording, with the same exFAT and 10 Gbit/s cable rules. The USB 3 up to 10 Gb/s figure here is the iPhone 15 Pro spec.
Final Verdict
The T7 matches the iPhone 15 Pro port: USB 3.2 Gen 2, a USB-C cable in the box, and a published write above Apple’s 440 MB/s floor, with the password left off and the volume set to exFAT. The XS2000 is the lighter stick, and its 2,000 MB/s line needs a Gen 2×2 host. The Express 1M2’s relevant cell is 990 MB/s on a 10 Gbps port, after it mounts in Files.