Asus has rolled out a compact portable storage stick that tries to solve one of the most boring tech problems in the most straightforward way: the Adol High Speed Solid State USB Drive, or PM310, has both USB-A and USB-C connectors built in, supports up to 500MB/s sequential read speeds, and comes in capacities up to 1TB. The pitch is simple enough. Plug the Asus Adol PM310 into an older PC on one side, then move files straight to a phone, tablet, or laptop on the other without hunting for a dongle.
That makes it less of a traditional flash drive and more of a tiny bridge between USB eras. The catch is that Asus is clearly aiming at convenience first: this is not a pocket rocket competing with larger external SSDs, but it is a neat fit for users who want solid-state speed without carrying extra cables or adapters.
Asus Adol PM310 dual connectors in a metal body
The PM310 uses a metal chassis measuring 82 x 20 x 7.5mm and weighs 42.9g, so it should disappear easily into a bag or even a coat pocket. Asus also includes a built-in flip cap to protect the connectors, which is more practical than the tiny removable caps that tend to vanish the second you need them.
The hardware setup is the real selling point here: one end carries USB-A, the other USB-C. That means the drive can work across older desktop systems and newer mobile devices without the usual accessory hunt. For anyone juggling files between legacy and modern kit, that alone will be the reason to consider it.
500MB/s sequential read speeds and broad device support
Under the hood, the drive uses USB 3.2 Gen 2 and Asus says it can reach sequential read speeds of up to 500MB/s. That is below what bigger dedicated external SSDs can do, but it is still firmly in the ”fast enough to stop complaining” category for a thumb-drive-sized device.
- 128GB: 280 yuan ($41)
- 256GB: 409 yuan ($60)
- 512GB: 629 yuan ($92)
- 1TB: 959 yuan ($141)
It also supports plug-and-play use across macOS, Android, HarmonyOS, iOS, and iPadOS. That mix matters because the market for portable storage is increasingly split between laptops, tablets, and phones, and a drive that can hop between all three is more useful than one that only behaves nicely in a single ecosystem.
A crowded portable SSD category
Asus is not entering an empty field. Colorful has also pushed a portable SSD recently, the RP600X Pro, with up to 1000MB/s read speeds and support for Apple ProRes recording. That comparison makes the PM310 look more modest on raw speed, but Asus is clearly betting that dual connectors and a simpler form factor will win over users who value convenience over bragging rights.
The bigger question is whether more brands will copy this hybrid-stick formula. If phones keep eating more of the file-transfer job that used to belong to laptops, a drive like this feels less like a niche accessory and more like a sensible response to how people actually move data now.