CP Technologies CP-UH-135 USB 2.0 Hub

Tuesday 10 May 2005 (updated on Monday 8 August 2005)

I needed to pick a small, inexpensive, 2.0-compliant USB hub for myself, and one for any of the users at my job who asked for one. I found one, the "CP Technologies Hi-Speed USB 2.0 Hub", which is part number CP-UH-135. This worked great with GNU/Linux without any trouble (using Linux 2.6.10 as distributed by Ubuntu), at least at first.

Image of the CP UH 135 USB Hub with the annoying LED coming right at you

I used this hub without too much trouble for a number of months. Then, one day, I plugged in a very standard PS-2 to USB converter (a cable that takes a standard PS-2 mouse and PS-2 keyboard and makes them show up as USB devices). The hub began to heat up and the smell of burning electronics came from it. After a few weeks, the hub began to generate serious USB errors from the kernel named Linux, and I finally gave up on it. I don't recommend this hub!

Finally, it has one additional annoying drawback for me: the blue LED power light on the side of thing is incredibly distracting. I put a small piece of black tape over it to block it, but it only helped a little. Such a powerful power light on a small device like that is highly annoying. I know geeks are really into these sorts of crazy blue LEDs, but for my part, I always feel like I am about to be assimilated by a funky post-modern Borg.

I am curious if there are any USB hubs out there that are more reliable and don't have annoying lights. I haven't used USB hubs in the past so I don't know if a power LED is common. If you find one, I'd encourage you to buy that one instead of this one. Almost anywhere you put the thing on a desk, the LED catches your eye.



If you found this page useful, and you play online poker, consider signing up for Pokerroom.com, Pacific Poker, or Party Poker through the links there. They are affiliate links that will help me raise money to support the bandwidth costs of this page, and compensate me for my time writing these things up. If you prefer a more direct route to, you can also send a paypal donation:

Copyright © 2005 Bradley M. Kuhn
Verbatim copying and distribution of this entire page is permitted in any medium, provided this notice is preserved.

ebb® is a registered service mark of Bradley M. Kuhn.


Bradley M. Kuhn <bkuhn@ebb.org>