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MOSDART 256GB USB C & A 3.2 150MB/s Dual Flash Drive with Keychain, Green | Fits Android Phones, iPhone 15, 16, 17, Macbook, iPad, For Photos and Videos, USB-C Port Protection, Phone Case Friendly
mosDART

MOSDART 256GB USB C & A 3.2 150MB/s Dual Flash Drive with Keychain

Bottom line: The MOSDART 256GB USB C & A 3.2 150MB/s Dual Flash Drive with Keychain ($48.99 on Amazon as of 2026-10-07): Dual USB-C and USB-A 3.2 ends work with iPhone 15/16/17, Android, iPad and MacBook; main trade-off: 150MB/s is a read-class figure; sustained write speed is not published.

$48.99

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Buy on Amazon — $48.99 Compare to similar accessories

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Dual USB-C and USB-A 3.2 ends work with iPhone 15/16/17, Android, iPad and MacBook
  • ✓ Rated up to 150MB/s, fast enough to offload 4K clips without a long wait
  • ✓ Extended USB-C neck reaches past phone cases, so no removing the case first
  • ✓ Rotating metal cover shields the USB-A end; separate cap protects the USB-C side
  • ✓ LED blinks during transfers so you know when it is safe to unplug

Cons

  • ✗ 150MB/s is a read-class figure; sustained write speed is not published
  • ✗ Keychain carry exposes the drive to pocket lint and drops it is not rated for
  • ✗ mosDART is a lesser-known brand with less long-term reliability data than SanDisk or Samsung

Manufacturer description

The mosDART 256GB Dual Flash Drive solves the problem of moving photos and video between a USB-C phone and a Mac without a dongle or a cloud upload. One end is USB-C, the other is USB-A 3.2, so the same 256GB of storage plugs into an iPhone 15, 16 or 17, an Android handset, an iPad, or a MacBook USB-A port without an adapter in between. Transfer speeds run up to 150MB/s, which is the difference between waiting on a 4K clip and just dragging it across. The USB-C connector sits on an extended neck, so you can leave your phone case on instead of prying it off every time you want to offload a…

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SpecPicks Verdict

SpecPicks scored MOSDART 256GB USB C & A 3.2 150MB/s Dual Flash Drive with Keychain using a rating × review-volume × price-fit model applied to published specs and reviews across the accessories category. mosDART'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

Will this work with my iPhone 15 without an adapter?

Yes. The drive has a native USB-C connector on one end, and iPhone 15, 16 and 17 all use USB-C, so it plugs in directly. The listing also names Android phones, iPad and MacBook as supported.

Do I have to take my phone case off to plug it in?

No. mosDART built the USB-C connector on a longer neck specifically so it clears phone cases. That is one of the drive's listed features.

How fast is it, really?

The manufacturer rates it at up to 150MB/s over USB 3.2. Real-world speed depends on the host port and file sizes, and mosDART does not publish a separate sustained write figure.

How do I know when a transfer has finished?

An LED indicator blinks while data is moving and stops when the transfer is done, so you get a visual cue before unplugging rather than guessing.

Is 256GB enough for phone photos and video?

For photo libraries and routine 1080p or 4K clips, 256GB covers a lot of offloading. If you shoot long-form 4K or ProRes regularly, plan on clearing it between sessions.

Key Features

  • Endless flexibility: Our 256GB USB C 3.2 dual flash drive lets you effortlessly transfer files between Android smartphones, tablets, and computers. No more frustration with compatibility issues!
  • Blazing-fast data transfer: Say goodbye to long wait times! Our USB C 3.2 thumb drive boasts lightning-fast data transfer speeds up to 150MB/S, allowing you to transfer files in just seconds.
  • No need to remove the shell: Our USB C memory stick has a longer type c port, so you don't have to remove the shell to use it. It's hassle-free and convenient.
  • Never lose your data again: Our sturdy keychain ensures that you'll never misplace your 2in1 type C 3.2 flash drive. Clip it to your backpack, keys, or lanyard, and always have your data within reach.
  • Led indicator and durable design: LED Indicator blinks while data transferring in process. The rotating metal design protects the USB A port and the USB C port has a cover to ensure your data stays safe.

Full Specifications

BrandmosDART
ColorGreen
Model NameUD211C GREEN 256GB
Read Speed150 megabytes_per_second
Unit Count1 Count
Write Speed140
ConnectivityUSB-C
Model NumberUD211C-GREEN-256GB
CompatibilityAndroid, iOS
Mfr Part NumberUD211C-GREEN-256GB
Special FeatureCompatible With iPhone15/15Pro/15Pro Max, Dual USB Connector, LED Indicator, Longer USB C Port, No Need To Remove Phone Case
Flash Memory TypeCompactFlash
Compatible DevicesiPhone 15, iPhone 16, Android phones, iPad, MacBook, other laptops
Hardware InterfaceUSB 3.2 Gen 1
Additional FeaturesCompatible With iPhone15/15Pro/15Pro Max, Dual USB Connector, LED Indicator, Longer USB C Port, No Need To Remove Phone Case
Warranty Description5 years warranty
Connectivity TechnologyUSB
Memory Storage Capacity256 GB
Item Dimensions D x W x H0.37"D x 1.18"W x 3.78"H
No need to remove the shellOur USB C memory stick has a longer type c port, so you don't have to remove the shell to use it. It's hassle-free and convenient.
Full listing titleMOSDART 256GB USB C & A 3.2 150MB/s Dual Flash Drive with Keychain, Green | Fits Android Phones, iPhone 15, 16, 17, Macbook, iPad, For Photos and Videos, USB-C Port Protection, Phone Case Friendly

Ready to buy?

MOSDART 256GB USB C & A 3.2 150MB/s Dual Flash Drive with Keychain, Green | Fits Android Phones, iPhone 15, 16, 17, Macbook, iPad, For Photos and Videos, USB-C Port Protection, Phone Case Friendly 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.

Buy on Amazon — $48.99

*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.

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MOSDART 256GB USB C & A 3.2 150MB/s Dual Flash Drive with Keychain, Green | Fits Android Phones, iPhone 15, 16, 17, Macbook, iPad, For Photos and Videos, USB-C Port Protection, Phone Case Friendly
$48.99
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