Bob's Notepad

Notes on projects I have done and things I have learned saved for my reference and for the world to share

Tuesday, July 08, 2008

USB to PS/2 Chipsets

I've been dealing with a lot of issues with repeating keys (sticky keys) when using USB to PS/2 adaptors. My one client needs to use these because the Startech IPKVM solutions mixed with the Aten masterswitch KVM switches requires it now that ATEN has discontinued the CS1216. We've recently ordered in a bunch of different brands and I checked to see what the chipsets were in each of these devices. It appears that the majority of them use a chipset by CHESEN and from what I am seeing that is the chipset that seems to have the most problems. I don't have a solid solution for anyone with the problem but the Q-Stor is looking good at this point. I simply want to post this list so that it is documented since I havent been able to find this information anywhere. If I end up getting more brand names I will append this list. If anyone has any reviews on any of these or another brand please leave a comment with the information.

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Startech USBPS2PC

PS2 to USB Converter:
Version: 0.10
Bus Power (mA): 500
Speed: Up to 1.5 Mb/sec
Manufacturer: CHESEN
Product ID: 0x0205
Vendor ID: 0x0a81
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SIIG USB to PS2 (UPC: 6 62774 02359 5)

USB to PS2 Adaptor V3.10:
Version: 3.10
Bus Power (mA): 500
Speed: Up to 1.5 Mb/sec
Manufacturer: Composite USB PS2 Converter
Product ID: 0x0001
Vendor ID: 0x0b39
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Belkin F5U119vE1

PS2 to USB Converter:
Version: 0.10
Bus Power (mA): 500
Speed: Up to 1.5 Mb/sec
Manufacturer: CHESEN
Product ID: 0x0205
Vendor ID: 0x0a81
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Keyspan UPS2A

PS2 to USB Converter:
Version: 0.10
Bus Power (mA): 500
Speed: Up to 1.5 Mb/sec
Manufacturer: CHESEN
Product ID: 0x0205
Vendor ID: 0x0a81
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Rosewill RCW-606

PS2 to USB Converter:
Version: 0.10
Bus Power (mA): 500
Speed: Up to 1.5 Mb/sec
Manufacturer: CHESEN
Product ID: 0x0205
Vendor ID: 0x0a81
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Q-Stor QUPCBL

Generic USB K/B:
Version: 0.01
Bus Power (mA): 500
Speed: Up to 1.5 Mb/sec
Product ID: 0x0017
Vendor ID: 0x13ba
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Cables to Go 27225

USB To keyboard Mouse Converter:
Version: 0.01
Bus Power (mA): 500
Speed: Up to 1.5 Mb/sec
Product ID: 0x8329
Vendor ID: 0x04b4
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1 Comments:

Anonymous Anonymous said...

Nice list! Like you mentioned, this information just isn't out there. I have also found the Chesen chipset based Belkin N10117 does not work with a KVM (Startech SV411KA). I was about to buy a Startech USBPS2PC, but won't since it has a Chesen chipset. I have a generic Travel Model with a Cypress chipset that works great, but I haven't been able to find another one (PID: 04bf / VID: 8081). The manufacturers really should list what chipset they use in these PS/2 to USB Adapters!

26/2/11 3:01 AM  

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