The Best Fast Portable SSDs

It is the only 1TB drive in this guide, and it needs a USB4 or Thunderbolt port to reach those speeds. It reads at up to 4,000MB/s over USB 40Gbps and Thunderbolt, and it is IP54-rated with 3-metre drop and 1-ton crush resistance. It suits fieldwork with large video files.

It matches the X10 Pro, the Lexar ES3 and the T7 Shield on capacity (1TB). Nothing else here matches its 4,000MB/s rated read speed; the X10 Pro comes closest at 2,100MB/s. You also get compatibility with Thunderbolt 3, 4 and 5 as well as 5-20Gbps USB and a three-year warranty with Rescue data recovery. It was the highest-priced of the 5 picks at the time of writing, so the case for it rests on what it adds over the T7 Shield and the rest.

It suits creators with a 20Gbps port. It reads at up to 2,100MB/s and writes at 2,000MB/s, and it is rated IP55 with 7.5-foot drop resistance. Full speed needs a 20Gbps USB port.

It matches the Rugged SSD4, the Lexar ES3 and the T7 Shield on capacity (1TB). Its 2,100MB/s rated read speed ranks second of 5 here, behind the Rugged SSD4 (4,000MB/s) and ahead of the T7 Shield (1,050MB/s). You get a USB 3.2 Gen 2x2 (USB-C) connection here, which sets it apart from the T7 Shield and its a USB 3.2 Gen 2 (USB-C) connection.

It also offers Acronis True Image and Mylio Photos+ trials. Its top speed needs a USB 3.2 Gen 2x2 (20Gbps) port; most laptops and all Macs run it at 10Gbps speeds instead. On price it sat third of 5, between the cheaper Lexar ES3 and the pricier T7 Shield, at the time of writing.

It is the cheapest SSD here. It reads at up to 1,050MB/s over a 10Gbps USB-C link, fast enough for moving large project folders. Expect about 465GB to show in Windows, which is normal for a 500GB drive.

SLC caching keeps large transfers fast, and S.M.A.R.T. and TRIM support help it last. It reads at up to 1050MB/s and writes at up to 1000MB/s over 10Gbps USB. S.M.A.R.T. health reporting and TRIM help keep write speeds consistent over time.

Its 0.5TB capacity is the smallest in this group; the Rugged SSD4 leads at 1TB. It matches the Lexar ES3 and the T7 Shield on rated read speed (1,050MB/s). It also comes with an activity LED and an SLC cache for steady transfers. It was the cheapest of the group when we checked; the Lexar ES3 was the next step up.

DataShield software adds 256-bit AES encryption. It weighs 42g and is 10.5mm thick, and it works with iPhone 17, Android, cameras and consoles. It matches the Rugged SSD4, the X10 Pro and the T7 Shield on capacity (1TB).

It matches the SSK 500GB and the T7 Shield on rated read speed (1,050MB/s). It shares a USB 3.2 Gen 2 (USB-C) connection with the T7 Shield; the X10 Pro goes with a USB 3.2 Gen 2x2 (USB-C) connection. It also offers a 42g weight.

Before buying, weigh one limit: costs more than the SSK 500GB at the time of writing. Its price falls between the SSK 500GB and the X10 Pro, based on our last check.

Speed stays at 1,050MB/s. Its rubber shell is rated for water, dust and drops, and it transfers over USB 3.2 Gen 2. It works with PC, Mac and consoles.

It reads at up to 1,050MB/s over PCIe NVMe, and it is rated IP65 for water and dust. Samsung makes its own controller, DRAM and NAND for the T7 Shield, and it is sold in 1TB to 4TB capacities. It matches the Rugged SSD4, the X10 Pro and the Lexar ES3 on capacity (1TB).

It matches the SSK 500GB and the Lexar ES3 on rated read speed (1,050MB/s). It shares a USB 3.2 Gen 2 (USB-C) connection with the Lexar ES3; the X10 Pro goes with a USB 3.2 Gen 2x2 (USB-C) connection. On price it sat fourth of 5, between the cheaper X10 Pro and the pricier Rugged SSD4, at the time of writing. The trade-off is rated read speed; for more, the Rugged SSD4 offers 4,000MB/s.