CU002 OTG USB Flash Drive

$14.99 USD

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One Drive, Both Ends — Move Files Between Phone and PC Without Cables or Cloud

Up to 150MB/s Read, 60MB/s Write
USB 3.1 Gen1 & Type-C OTG
Waterproof Protection
Premium Zinc Alloy Body

Capacity

32GB
64GB
128GB
256GB
512GB

Capacity

Quantity

Free Shipping on orders $109+

5-10 Business Days
30-Day Return Policy
Secure Payment
3-Year Warranty

Your phone's storage panic, solved in your pocket

OSCOO's CU002 OTG USB Flash Drive combines versatile dual-interface connectivity with compact portable design. Featuring USB 3.2 Gen1 and Type-C technology, it delivers reliable transfer performance and capacities up to 256GB for storing documents, media files and essential data. The CU002 features both Type-C and USB-A interfaces in a waterproof zinc alloy construction, empowering mobile professionals and everyday users to seamlessly transfer and access their files across smartphones, tablets, laptops and any device, anywhere.

Full specifications & FAQ

OSCOO CU002 Dual-Connector USB Flash Drive — USB-C + USB-A, Zinc Alloy, 32GB to 512GB

The CU002 has both connectors built in: USB-C on one end, USB-A on the other. Plug it into your phone, offload photos and videos, then plug it into any computer — no cable, no cloud upload, no adapter to lose. The zinc alloy body is waterproof and weighs just 19 g on a keychain.

Key specifications:

Dual built-in connectors: USB-C and USB-A (USB 3.2 Gen1)
Read speed up to 150 MB/s, write speed up to 60 MB/s
Capacities: 32GB / 64GB / 128GB / 256GB / 512GB
2-in-1 OTG, plug and play — no app or driver required for standard file browsing
Works with Android, Windows, macOS, Linux, and iPhone 15 or later (USB-C models)
Zinc alloy body, waterproof, 63.7 × 13.8 × 9.2 mm, 19 g
Operating temperature 0–70°C
3-year warranty

Who it's for: Phone users offloading photos and videos to free up space; anyone moving files between a USB-C phone/tablet/MacBook and a USB-A desktop; car stereos and TVs that read USB drives; students and office workers carrying files between machines.

FAQ:

Does it work with iPhone? iPhone 15 and later — these have USB-C and read the drive directly through the Files app. Older Lightning iPhones are not supported.
Why is the write speed lower than the read speed? That's the honest spec: 150 MB/s reads, 60 MB/s writes — typical for flash drives in this class (many brands simply don't publish write speeds). For moving photos and documents it's quick; for constant large-video workflows, a portable SSD like the OSCOO MD100 is the better tool.
Can I use both connectors at once? No — one at a time. The drive appears as the same storage from either end, so files moved from your phone are right there when you plug into your PC.
Is it really waterproof? The zinc alloy body seals the flash storage against water exposure — rain, splashes, or a trip through the laundry. Let it dry fully before plugging in.

All OSCOO products come with a 3-year warranty.

Specifications

Model

CU002

Product Dimensions

63.67 × 13.79 × 9.22mm (2.5" × 0.5" × 0.4")

Read Speed

Up to 150MB/s

Write Speed

Up to 60MB/s

Interface Protocol

USB 3.2 Gen1 & Type-C

Function Support

2-in-1 OTG, Plug & Play

Support System

Android, Windows, Mac OS, Linux, iOS

Operation Temperature

0~70°C

Storage Temperature

-20~85 °C

Color

Silver

Product net weight

19.0g

Capacities

32GB, 64GB, 128GB, 256GB, 512GB

Material

Zinc Alloy (Waterproof)

Cables

Built-in dual connectors

Warranty

3 years

Datasheet

Download Datasheet

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Frequently Asked Questions

This resource is crafted to help you find information easily and efficiently.

Can the CU002 connect directly to my phone/tablet?

Yes, the CU002 features dual connectors with both USB-A and Type-C interfaces, making it compatible with smartphones, tablets, and computers. It works seamlessly with Android devices via Type-C and older devices via USB-A. The OTG (On-The-Go) functionality allows direct file transfer between devices without needing a computer as an intermediary.

Will the CU002 work with both my old laptop and new phone?

Absolutely. The dual-interface design ensures compatibility across generations of devices. Use the USB-A connector for traditional laptops and desktops, and the Type-C connector for modern smartphones, tablets, and newer laptops. The plug-and-play design means no drivers are required for either interface.

Is the CU002 durable enough for keychain carrying?

Yes, the CU002 features waterproof zinc alloy construction that provides excellent protection against daily wear, moisture, and impacts. At 19g, it's lightweight enough for keychain attachment while being robust enough to withstand regular use. The solid-state design has no moving parts, making it highly resistant to drops and vibrations.

Can I transfer large files directly between my phone and computer?

Yes, with USB 3.2 Gen1 speeds and OTG support, the CU002 handles large file transfers efficiently. You can move photos, videos, documents, and apps between devices. The compact design makes it convenient for on-the-go transfers, perfect for backing up phone content or sharing files between work devices.

What is the actual usable capacity of the CU002?

32GB version: approximately 29GB usable

64GB version: approximately 59GB usable

128GB version: approximately 119GB usable

256GB version: approximately 238GB usable

(System formatting and binary conversion consume some space, which is industry standard)

How reliable is the zinc alloy construction?

The waterproof zinc alloy material provides excellent durability for daily use. It resists corrosion, scratches, and moisture damage. The compact 63.67mm length and solid construction ensure the connectors remain protected when not in use. However, avoid extreme temperatures outside the 0-70°C operating range.

Why doesn't my device reach maximum USB 3.2 speeds?

Achieving optimal speed requires:

①Device support for USB 3.2 Gen1 interface

②Compatible USB-C or USB-A port on your device

③Large file transfers (small files are affected by system overhead)

④Proper OTG support on mobile devices

If your device only supports USB 2.0, speed is capped at approximately 60MB/s. Mobile devices may have additional speed limitations based on their USB implementation.

These are device limitations, not product defects.