I had the same stupid problem with "error code 10" after installing the latest drivers from Prolific that everyone else listed. A Monoprice RMA support person referred me to the driver at the following link, which worked for me. It had the error immediately after I ran the installation, but it started working a moment later (apparently it took a moment for Windows to get it going after the installation).
Contrary to the item description, this adapter does NOT work with Win7 64 bit. Even the packaging it comes in does not mention Windows 7 support at all. I loaded the driver and it would not start. I kept getting the Code 10 error. According to the hardware ID in device manager, it appears to have the Prolific 2303 chipset. According to the Prolific web site it is either too old for Win7 or it is a counterfeit chip. Just search the web for PL2303 driver and check out the RED print on their web site. Prolific recommends on their web site to use devices with the PL-2303HX rev D or PL2303TA chips. I already setup an RMA and kudos to Monoprice for responding quickly. I would like to see you update the item description accordingly or at the very least prove how you got it to work on your Win7 64 and 32 bit computers.
CONS: Does not work with Windows 7 64 bit, did not test with 32 bit.
First off, there are working Vista 64 drivers for this, they can be found here: http://www.iocrest.com/Driver/Adapter/SY-USB-S.zip I saw this URL at another vendor's website, and I've confirmed they work on Vista 64 SP2.
I had issue with the fact the receptor screws were not removable, I had to remove the ones on my receiver, but I got it plugged in and working. This is controlling my Onkyo TX-SR805 perfectly with EventGhost.
Truly plug and play. Running Slackware Linux 12.2 with kernel 126.96.36.199. Here's the dmesg output when plugged in:
usb 4-3: new full speed USB device using ohci_hcd and address 2 usb 4-3: configuration #1 chosen from 1 choice usb 4-3: New USB device found, idVendor=067b, idProduct=2303 usb 4-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0 usb 4-3: Product: USB-Serial Controller usb 4-3: Manufacturer: Prolific Technology Inc. usbcore: registered new interface driver usbserial usbserial: USB Serial support registered for generic usbcore: registered new interface driver usbserial_generic usbserial: USB Serial Driver core usbserial: USB Serial support registered for pl2303 pl2303 4-3:1.0: pl2303 converter detected usb 4-3: pl2303 converter now attached to ttyUSB0 usbcore: registered new interface driver pl2303 pl2303: Prolific PL2303 USB to serial adaptor driver
Using it to control a MyBlaster serial IR blaster. Works extremely well.
Works great! Make sure you go to the website to get the latest drivers...go to Downloads and select MCS7703 at hxxp//www.moschip.com/html/download_drivers.html Different drivers for XP Vista32/64 etc. After installing go into device manager and select which COM port you would like to use. NOTE you must plug the usb cable into the SAME port each time in order to keep the COM port assignment. Also use the safely remove usb device before unplugging the cable just like with a flash drive. Also if you are using to update a satellite STB make sure you check whether the unit should be in standby instead of boot mode when using the usb to serial converter.
I have had a few of these with the same molding but a newer chipset. this particular manufacturer uses an older chipset that is no compatible with a 64 bit OS. Prolific, the manufacturer of the chip itself, claims the issue is counterfeit chipsets from china. regardless of what the actual problem is, i could not get 4 of these to work on 3 different 64 bit laptops.
PROS: Monoprice worked with me to issue a credit with very little hassle.
CONS: 4 different units did not work with windows 7 64 bit. Even though it says on the site that it is 64 bit compatible, the manufacturer says it is not.
Worked in Vista, not in Win 7. Possibly a knock-off of an actual Prolific product.
PROS: Worked fine when I used it in Vista with the driver released two years ago.
CONS: Apparently, this is a counterfeit adapter (so says Prolific). I upgraded to Windows 7 and now get a code 10 (little exclamation point in a yellow triangle). Apparently, the driver that was supposed to work with this adapter takes into consideration the knock-offs or copy-cats that are out there. Nonetheless, it was only 8 bucks, and I used it for a couple years with Vista. No great loss.