The USB ID Repository

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Main -> USB Devices -> Device UD:abcd -> Subsystem UD:abcd:1234

Name: UDisk flash drive

Discussion

Name: Flash Drive

It's a promotional 8GB USB Flash Drive Bracelet, like these:

http://www.wellpromo.com/upload/upimg24/Union-Usb-Bracelet-Flash-Drive-35824.jpg

Chip origin unknown.

The USB ID is likely chosen at random, and not officially obtained from the USB IF.

pmjdebruijn

2013-11-01 12:35:18

Name: U-Disk flash drive

"iProduct 2 UDisk"; 8GB flash drive; metal case with key ring; FAT32 volume name: "U-Disk".

chf

2013-12-19 04:33:00

Name: flash drive

Note: non-official ID

I've found this again in another 8GB drive "Intenso Rainbow Linu 'green'", probably a „good quality“ fake, but with much slower read and write speeds than advertised for the original.
Results from FFF flash drive test programme:
Free space: 7.26 GB
Average writing speed: 1.88 MB/s
Average reading speed: 10.81 MB/s
So those are cheap and slow flash drives used for promotional and no-name drives, as well as faked brand drives.

chf

2015-03-28 17:13:19

Name: flash drive

My last entry is wrong, I confused two devices on the bus, I verified that the previous entry is correct, so this ID is used for legitimate cheap flash drives.

chf

2015-06-23 00:01:26

Name: UDisk

[ 2012.266624] FAT-fs (sdb1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[ 2088.218332] usb 3-2: USB disconnect, device number 6
[ 2093.105351] usb 3-2: new high-speed USB device number 7 using xhci_hcd
[ 2093.233937] usb 3-2: New USB device found, idVendor=abcd, idProduct=1234
[ 2093.233944] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2093.233947] usb 3-2: Product: UDisk
[ 2093.233949] usb 3-2: Manufacturer: General
[ 2093.234501] usb-storage 3-2:1.0: USB Mass Storage device detected
[

CIJOML

2016-08-01 22:06:27

Name: UDisk flash drive

Verified mine again:
from "lsusb" output:
iManufacturer 1 General
iProduct 2 UDisk

chf

2017-07-23 03:01:04

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