Smallest ethernet switch available?

[RichDuffy]

I'm looking for a small, light ethernet switch that I can carry around in a laptop bag. Hoping people can point me in the right direction...

Requirements below:

- 10/100Mbps is sufficient, but I wouldn't say no to 1Gbps if it wasn't any bigger.
- Size is more important than weight
- Plastic casing would be preferable to metal but not essential
- USB powered would be ideal so I wouldn't have to carry around a power adapter. But again, not essential.

So far I've seen a couple around 90mm long by 70mm wide - is that as small as it goes?

 

[#Chri5#]

I've got an older USB powered switch and it's very handy for sharing a single CAT5 without needing another mains plug.

Google for the Eten PW-105 - that's 62 x 20 x 79 mm and USB powered. Yours for under £15.