SSK
SSK 2TB USB C Flash Thumb Drive up to 550MB/s Dual USB C+A Memory Stick
Bottom line: The SSK 2TB USB C Flash Thumb Drive up to 550MB/s Dual USB C+A Memory ($239.99 on Amazon as of 2026-10-21 00:15 UTC): Dual USB-C and USB-A 3.2 Gen 2 heads - no dongle between phone and laptop; main trade-off: not compatible with Lightning ports - older iPhones need an adapter.
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*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Dual USB-C and USB-A 3.2 Gen 2 heads - no dongle between phone and laptop
- ✓ Rated up to 550MB/s read and 500MB/s write, about 10x a USB 3.0 stick
- ✓ 2TB capacity handles full 4K shoots and photo libraries on one stick
- ✓ Zinc alloy shell resists drops and abrasion, dissipates heat under load
Cons
- ✗ Not compatible with Lightning ports - older iPhones need an adapter
- ✗ Ships exFAT, so Time Machine users must reformat to APFS or HFS+
- ✗ 550MB/s is a peak figure from SSK internal testing, not a sustained floor
- ✗ Two protective caps to keep track of, one per connector head
Manufacturer description
The SSK 2TB USB C Flash Thumb Drive solves the two problems that make ordinary memory sticks frustrating: it is too slow, and it only fits one port. This dual-head drive carries a USB-C connector on one end and a USB-A 3.2 Gen 2 connector on the other, so you can pull footage off an OTG-enabled Android phone or iPhone 15/16/17 and drop it straight onto a MacBook or Windows laptop without a dongle in between. SSK rates it at up to 550MB/s read and 500MB/s write, roughly ten times what a traditional USB 3.0 stick manages, which is the difference between waiting on a 4K video transfer and…
SpecPicks Verdict
SpecPicks scored SSK 2TB USB C Flash Thumb Drive up to 550MB/s Dual USB C+A Memory… using a rating × review-volume × price-fit model applied to published specs and reviews across the accessories category. SSK's accessories lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for accessories of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Does this work with an iPhone?
It works with USB-C iPhones, including the iPhone 15, 16, and 17. It is not compatible with Lightning ports, so older iPhone models would need a separate adapter.
How fast is it really?
SSK rates it at up to 550MB/s read and 500MB/s write over USB 3.2 Gen 2, based on their internal testing. Actual speeds vary with your host device, port, and file sizes.
Do I need to install any software or drivers?
No. It is plug and play. It arrives preformatted as exFAT and is recognized by Windows, macOS, Linux, and Android without any installation.
Will it work with my smart TV or car audio system?
Yes, through the USB-A 3.2 end, which is backward compatible with USB 3.0 and USB 2.0 ports. The exFAT format is read by most smart TVs and car head units.
How durable is it, and what warranty does SSK offer?
The housing is high-grade zinc alloy built to resist drops and abrasion, with a protective cap over each connector. Check the product listing for current warranty terms.
Key Features
- Dual Drive USB C + USB A: Equipped with an USB-C port and USB-A 3.2 port,the Dual USB SSD flash drive allows you transfer data between smartphone/tablet and computer more conveniently. Instantly release space or quickly move pictures or movies on your OTG enabled Android Type C phone, tablet, MacBook, Windows computer, car audio system, smart TV and more
- Ultra Fast High Speed: SSK USB 3.2 Gen 2 flash drive up to 550mb/s read speeds and 500mb/s write speed, which is 10 times faster than traditional USB 3.0 memory stick. Let you move high-resolution photos, videos fast and large-capacity files. Based on internal testing, performance may vary slightly due to factors such as host equipment, interfaces, and usage conditions
- Plug and Play: Ultra dual drive supports plug and play, without any software installation. At the same time, USB stick storage can expand the capacity of phones and computer. It is convenient for everyone to use the mobile phone to directly read the flash drive for file sharing, data transmission, and video playback when working or studying. Work with most systems such as Windows / Android/ Macbook Pro and Mac OS. (incompatible with lightning port)
- Safe & Reliable: USB SSD drive is made of high-grade zinc alloy shell, which is resistant to falling and abrasion. The design of the double-head protective cover better protects the two interfaces. External memory stick have excellent shock resistance and fast heat dissipation performance to better protect your data
- Universal Compatibility: High speed USB stick external storage compatible with computer equipment, smart TV, car audio, smart phones, iPhone 15, iPad, Laptops, Macbook and more. Backward-compatible with USB 3.0 and USB 2.0 ports. Comes with default format EXFAT, it works with most systems such as Windows/Linux/Mac OS./Android(Incompatible with lightning port)
Full Specifications
| Brand | SSK |
|---|---|
| Model Name | SD311/2TB |
| Read Speed | 550 megabytes_per_second |
| Unit Count | 1 Count |
| Form Factor | 2.5-inch |
| Media Speed | 500 |
| Connectivity | USB-C |
| Model Number | 3d3471d3-4654-47d9-8f36-429752ce6f4e |
| Compatibility | Android, iOS, Mac, Linux |
| Built-In Media | 1 x USB Cable |
| Hard Disk Size | 2 TB |
| Hard-Drive Size | 2 TB |
| Number of Items | 1 |
| Special Feature | Dual USB Connector, Portable |
| Installation Type | External Hard Drive |
| Compatible Devices | Desktop, Smartphone, Laptop, Mac, Gaming Console |
| Data Transfer Rate | 550 megabytes_per_second |
| Enclosure Material | Nand Flash |
| Additional Features | Dual USB Connector, Portable |
| Hard Disk Interface | USB 3.2 |
| Full listing title | SSK 2TB USB C Flash Thumb Drive up to 550MB/s Dual USB C+A Memory Stick | 2 in 1,OTG,USB A+C 3.2 Gen2,High Speed,Zinc Alloy,External Solid State Drive for iPhone 15/16/17/Android Phone/MAC |
Ready to buy?
SSK 2TB USB C Flash Thumb Drive up to 550MB/s Dual USB C+A Memory Stick | 2 in 1,OTG,USB A+C 3.2 Gen2,High Speed,Zinc Alloy,External Solid State Drive for iPhone 15/16/17/Android Phone/MAC is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
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