We issue this warning to all our customers and consumers to avoid confusion and false purchase. Counterfeit IC products show exactly the same outside chip markings but generally are of poor quality and causes Windows driver compatibility issues ( Yellow Mark Error Code 10 in Device Manager). Please be warned that counterfeit (fake) PL-2303HX (Chip Rev A) USB to Serial Controller ICs using Prolific's trademark logo, brandname, and device drivers, were being sold in the China market. Log-in to our Support webpage to download more files: Prolific recommends to use PL-2303HXD (HX Rev D) or PL2303TA chip.Windows XP, 2000, 98 and Windows ME driver technical support is discontinued.Run PL2303 CheckChipVersion tool program in Windows XP/Vista/7 to check chip version.Windows 8/8.1/10 are NOT supported in PL-2303HXA and PL-2303X EOL chip versions.Installer supports silent install (add "/s" parameter when running program) Includes Certification Report, User Manual, Driver Release Notes, CheckChipVersion Tool Installer Language Support: English (default), Auto-download driver via Windows Update (Windows 7, 8.1, 10) Windows Vista, 7, 8.1 Certified WHQL Driver ( For PL2303 HXD, SA, TA, TB, RA GC, GS, GT, GL, GE, GD, GR versions) Auto-download driver via Windows Update (Windows 11) Windows 11 Certified WHQL Driver ( 21H2 versions) ( For PL2303 HXD, SA, RA GC, GS, GT, GL, GE, GD, GR versions) Windows Driver Installer Setup Program ( Win7 / Win8.1 / Win10 / Win11) PPS: In meantime, you can download the older driver ( v3.8.39.0 worked for me) and use it instead.Download File: PL2303_Prolific_DriverInstaller_v4.0.1.zip Only to pull the same shit again in 2016. PS: And yes, FTDI did say they saw the error of their ways back in 2014. I am hoping, but not holding my breath for either. I also hope that Prolific will see the error of their ways and stop bricking customer devices. I hope that Microsoft will rollback driver since it's their update that's causing issues for the customer. Their product is nothing special and there are many other manufacturers happy to take my money. Unless something changes, I won't buy a single Prolific cable ever again. Since I cannot verify their authenticity myself, buying any Prolific device is something that might bite me in the ass. What I do know is that Prolific is ready to play shenanigans with Microsoft update and brick my devices down the road. Why? Because there is no way that I, as a customer, can check if device is indeed original or not. I am never going to knowingly buy a Prolific device again. While Prolific might look at me as a potential new customer since I am in the market for a new cable, I believe that's the wrong assumption. The only person not out of money is probably the guy selling fakes in the first place. Manufacturer might be out of money (especially if they didn't know they're dealing with fakes).
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If I can ask for refund, the seller might be out of money. Money is long gone and so is the supplier of the fake chips. I paid the seller, he paid his supplied, his supplied paid the manufacturer and so on. I bought device without knowing it has a fake chip in it. For me the concept of bricking device owned by an unsuspected user is a bridge too far.
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However, their beef should be with fake chip suppliers and not with the end customer. And I can see how they might be annoyed with fake chips using their drivers. Now, you might thing this is their right. PLEASE CONTACT YOUR SUPPLIER." Yes, it's the exact nonsense that FTDI pulled years ago - using Microsoft Windows Update mechanism for their authenticity enforcement. While the serial port did appear, I couldn't open it or send any data.Ī quick trip to Device Manager has shown a problem: " THIS IS NOT PROLIFIC PL2303. A few days ago I needed USB type-A serial device to do a quick loopback test and grabber the same, previously working, device. After finding a suitable device, I did what was needed and forgot about it for a while. Story starts with me searching for 5V USB cable with a 3.3V signal. Yes, it's again time for a chip manufacturer to mess with your computer drivers. Well, it's been a while since the FTDI fuckup so I guess it was a time for another IC supplier to go bonkers.