Description: D:Dispositivo di archiviazione di massa USBUSB SanDisk 3.2Gen1 Device Type: Mass Storage Device Protocal Version: USB 3.20 Current Speed: High Speed Max Current: 896mA USB Device ID: VID = 0781 PID = 5591 Serial Number: 0101EDBCB76540623D2C868B01D99A538365DC5F19DEA48C31DB5668A48D1276ED51000000000000000000004FC89EF5FF1D4F00915581076DAE97A2 Device Vendor: USB Device Name: SanDisk 3.2Gen1 Device Revision: 0100 Manufacturer: USB Product Model: SanDisk 3.2Gen1 Product Revision: 1.00 Controller Part-Number: Unknown

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Direct answer to the question - The string of data you posted describes a genuine SanDisk-branded USB 3.2 Gen 1 flash drive VID 0781 PID 5591, “Ultra Ultra Luxe” family, nominally 64 GB. - Although the device advertises USB 3.2 capability, the host currently enumerates it at “High-Speed” USB 2.0, 480 Mbs instead of the expected “SuperSpeed” USB 3.2 Gen 1, 5 Gbs. - This downgrade is almost never a firmware setting inside the stick; it is caused by one of four factors: 1. Non-SuperSpeed port, hub, cable or front-panel wiring. 2. Out-of-date or mis-installed USB 3.x host-controller drivers BIOS setup. 3. Power or signal-integrity problems on the host connector bent, dirty, oxidised pins. 4. Hardware fault inside the flash drive’s SuperSpeed lane rare but possible. Key points • Try the drive directly in a proven USB 3.x port on another machine. • Update chipset USB drivers and check BIOS “USB 3.x = Enabled”. • Inspectclean connectors; avoid USB 2.0-only cables and passive hubs. • If every PC shows only High-Speed, the drive’s SuperSpeed pair is damaged – claim warranty. Detailed problem analysis most extensive section 1. USB capability negotiation fundamentals • During enumeration the stick first connects on the USB 2.0 D+D- pair mandatory for all devices. • It then advertises the Binary Device Object Store BOS descriptor that contains SuperSpeed capability. • The host port looks for the five additional SuperSpeed contacts SSRX±, SSTX±, GND recessed in the Type-A plug. • If any of those contacts are absent or have poor signal integrity, the host aborts the 5 Gbs training sequence and falls back to High-Speed. 2. Interpretation of your dump • “Protocol Version USB 3.20” → the device’s firmware tells the OS it is Gen 1 capable. • “Current Speed : High Speed” → negotiation fell back. • “Max Current 896 mA” → stick is requesting the higher power bucket defined for USB 3.x USB 2.0 top is 500 mA. Power therefore is not the reason for downgrade; signal path is. 3. Common root causes ranked by probability a. Port wiring limitation – Front-panel headers in older PC cases often run only the USB 2.0 pair, even though the receptacle is blue. – Passive hubs or extension leads that claim “USB 3.0 compatible” sometimes have the extra pins absent. b. Driver firmware – Windows 78 need the Intel AMD USB 3.x eXtensible Host Controller xHCI driver manually; Win1011 include it but OEM updates can fix errata. – BIOS settings like “Legacy USB” or “XHCI hand-off disabled” force the controller into EHCI USB 2.0-only mode. c. Connector contamination mechanical wear – Dust, oxide or a slightly bent middle plastic tongue masks the back row of SS contacts while still letting the 4-pin USB 2.0 section touch. d. Drive hardware failure – The ASMedia Phison controller inside some SanDisk sticks can lose SuperSpeed lanes after ESD or severe flexing. When that happens High-Speed still works, giving the symptoms you see. 4. Performance expectations when fixed • SanDisk Ultra Ultra Luxe 64 GB typically reach 100–150 MBs sequential read and 20–60 MBs write on large files, measured by CrystalDiskMark 8 or FIO. • At High-Speed you are capped to ≈ 38 MBs raw bus bandwidth → real copy speeds 30 MBs or less. Current information and trends • The confusing renaming of USB versions USB 3.0 = USB 3.2 Gen 1 = 5 Gbs still causes user mis-matches. • Modern motherboards Intel 600-, 700-series, AMD AM5 expose USB 3.2 Gen 2×2 20 Gbs and USB-C ports; legacy Type-A connectors may share internal hubs that revert to USB 2.0 when oversubscribed. • Flash drives are moving to native USB-C controllers and higher-end NVMe-based sticks, but commodity USB-A drives like yours remain widespread. Supporting explanations and details USB pin-out Type-A looking into receptacle: | ■ SSRX- | ■ SSRX+ | ■ GND | ■ SSTX- | ■ SSTX+ | back row – SuperSpeed | VBUS | D- | D+ | GND | front row – USB 2.0 If the rear row is not seated or routed, only USB 2.0 modes are possible. Analogy: think of USB 2.0 as a one-lane road and USB 3.x as a two-lane highway built behind it; you can still reach the destination, but traffic is slower if the rear lanes are closed. Ethical and legal aspects • Data security – always keep a backup before extensive testing; repeated plugunplug cycles while troubleshooting can stress flash cycles. • Warranty – SanDisk Western Digital offers a 5-year limited warranty; opening the casing voids it. • USB-IF compliance – using non-certified cableshubs can violate spec current limits and risk port damage. Practical guidelines Step-by-step checklist: 1. Insert the stick directly into a known blue-tab USB 3.x port on the motherboard’s rear IO no hub, no extender. 2. Observe in Windows > USBTreeView or Linux lsusb -t that the speed changes to “5000 M”. 3. If not: • Update chipset xHCI drivers from IntelAMD OEM site. • Enter BIOS → enable “XHCI Mode = Smart AutoEnabled”. 4. Still no SuperSpeed? Inspect stick and port under lamp; clean with 99 % IPA and lint-free swab; reseat firmly. 5. Test on a second PC or a modern laptop. 6. If every system reports High-Speed only – initiate RMA with SanDisk, citing loss of SuperSpeed enumeration. Potential challenges • Embedded front-panel cables often too long thin for 5 Gbs. Route rear-IO ports instead. • Some docks supply only USB 2.0 on Type-A while USB-C ports stay 3.x; users overlook this. Possible disclaimers or additional notes • Consumer USB flash controllers generally have no public firmware upgrade path; avoid third-party “firmware tools” found online. • Sustained write performance can drop once the SLC cache fills; this is normal behaviour TLC NAND. • Counterfeit drives exist; your VIDPID matches SanDisk, but capacity and speed tests H2testw, F3 are recommended when purchased from unofficial resellers. Suggestions for further research • Analyse enumeration logs with the open-source USBPcap + Wireshark to see where the SuperSpeed negotiation fails. • Monitor voltage droop on VBUS with a USB-C power meter-style inline gauge many support Type-A adapters. • Explore emerging USB4 Thunderbolt 4 solutions for future removable-storage projects. Brief summary Your SanDisk UltraUltra Luxe USB 3.2 Gen 1 stick is authentic but is presently limited to USB 2.0 mode. Nine times out of ten the cause is host-side port, wiring, drivers; the remainder are connector contamination or an internal controller fault. Work through the portdrivercleaning sequence; if every system refuses SuperSpeed, claim warranty replacement.

SanDisk USB 3.2 Gen 1 Operating at USB 2.0 Speed

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