Does anyone know its real write speed?

This is a USB 3.0 memory stick with a maximum read speed of 100MB/s and a maximum write speed of 25MB/s

Is it compatible with samsung a5

I found the small connector would not fit any of my phones or tablets. The phone is a Galaxy Note 4 so I doubt it would fit.

Yes, it is waterproof. But please make sure the interface is dry when using it.

Does this work with 21 ultra samsung

It seems very likely that this will connect. The spec states that the 21 ultra has a USB type c connector, and the memory pen is usb c at one end and the larger USB plug at the other end to allow it to be plugged into a laptop or similar. I cautiously suggest it will be OK.

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RAOYI 128GB USB C Flash Drive Type-C and A Dual USB 3.0 Stick up to 110MB/s

Product ID: 86282814

Details

Brand
RAOYI
Hardware interface
USB 3.0
Memory storage capacity
128 GB
Special feature
Dual USB Proof
Write speed
≥ 30 MB/s

⚡110MB/s read speed

💧Waterproof & shockproof

🔄Dual USB-C & USB-A ports

7064 kr

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Description

🚀 Dual-port speed meets rugged style—never run out of space or time again!

RUGGED RELIABLE - Metal casing with waterproof, shockproof, and wear-resistant design keeps your data safe on the go.
BLAZING FAST TRANSFERS - Move 1GB files in under a minute with USB 3.0 speeds up to 110MB/s read and 30MB/s write.
POCKET SIZED POWERHOUSE - Compact and lightweight at just 9.4g, fits effortlessly on your keyring for instant access anywhere.
UNIVERSAL DUAL CONNECTOR - Seamlessly switch between USB-C and USB-A devices—smartphones, tablets, laptops, and more.
INSTANT STORAGE EXPANSION - Free up phone space by offloading photos and videos directly—perfect for busy professionals and travelers.

The RAOYI 128GB USB C Flash Drive combines high-speed USB 3.0 performance with dual USB-C and USB-A connectors, delivering up to 110MB/s read and 30MB/s write speeds. Its durable metal body is waterproof, shockproof, and wear-resistant, making it ideal for professionals needing fast, reliable, and versatile portable storage across smartphones, tablets, and computers.

Specifications

ASIN	B07H3QQNY3
Best Sellers Rank	1,709 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 43 in USB Flash Drives
Brand Name	RAOYI
Colour	Black (1 Pack)
Compatible Devices	Type-C and USB phone, tablet, laptop, Macbook Pro, Samsung S8, Galaxy Note 8, Lumia 950 XL, OnePlus 3, 2, Google pixel xl, Google Pixel C, Nexus 5X, 6P, LG G5, HTC 10, Huawei Mate 9 Plus
Compatible Phone Models	Samsung, Google, Huawei, Honor, Xiaomi, Oneplus
Country of Origin	China
Customer Reviews	4.2 4.2 out of 5 stars (9,671)
Flash Memory Type	usb
Hardware Connectivity Technology	USB Type C
Hardware Interface	USB 3.0
Item Dimensions D x W x H	54D x 16W x 8H millimetres
Item Highlight	128GB USB Memory Stick, Dual USB-A and USB-C Connector, Thumb Drive for Smartphones, Tablets, Macs and Computers, Black
Item Weight	9.4 Grams
Manufacturer	RAOYI
Manufacturer Part Number	U650-Black-128G-UK
Memory Storage Capacity	128 GB
Model Name	U650
Model Number	U650-Black-128G-UK
Network Connectivity Technology	USB
Number of Items	1
Number of Packs	1
Product Features	Dual USB Connector, Magnetic Proof, Shockproof, Water Proof, Wear Resistant
Read Speed	110 Megabytes Per Second
UPC	763230622229
Unit Count	1.0 count
Write Speed	≥ 30 MB/s

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7064 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Iceland.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

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1 month ago

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