Troubleshooting • Re: Gimpy USB performance Raspi 4 B Kingston 128gb USB Gen 3.2 V1

From chipgenius (if anyone else wishes to analyze a USB key use that application). This was clearly the original problem of a USB key that was barely ever used under performing. Unless at a firmware level devices are throttling based on age instead of wear which would be absurd, although apple did do this for battery wear and tear.

Description: [F:]USB Mass Storage Device(Kingston DataTraveler 3.0)
Device Type: Mass Storage Device

Protocal Version: USB 3.20
Current Speed: High Speed
Max Current: 504mA

USB Device ID: VID = 0951 PID = 1666
Serial Number: 408D5CBF5F0AE851390D3388

Device Vendor: Kingston
Device Name: DataTraveler 3.0
Device Revision: 0110

Manufacturer: Kingston
Product Model: DataTraveler 3.0
Product Revision: PMAP

Controller Vendor: Phison
Controller Part-Number: PS2251-19(PS2319) - F/W 10.04.5D [2021-09-29]
Flash ID code: 983E980376E4 - Toshiba [TLC]

And the original same 128 kyson DT drive (All relevant data is the same other than controller and serial #)

Controller Vendor: Phison
Controller Part-Number: PS2251-09(PS2309) - F/W 08.30.5D [2018-09-21]
Flash ID code: 983C98B376E3 - Toshiba [TLC]

They are both authentic drives but go figure ones using dated firmware from 2018 and a different flash ID code which would indicate a different revision of NAND was used.

I'll be punting the defective/older one back to them and keeping the newer one. Crystal disk mark was 4x faster for writes and significantly faster for 4k random (although still shitty compared to samsung bar+).

Statistics: Posted by solace50 — Thu Sep 11, 2025 10:17 pm

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