The basic specs are:
16Mb (max ?Mb)
64Mb (max 512Mb?)
1280 x 1024 16-bit colour
2 x USB1.1
Kybd & mouse
Dimensions W x H x D 4.5cm x 23cm x 20cm
The Relisys RWT200EM runs Windows CE Net 4.1. The unit was manufactured in October 2003. It's manufactured by Teco. and has a model number of TR3331. [December 2016. The Teco website seems to have vanished. The link above now takes you to a page on alibaba.com]
The Relisys RWT200EM uses an external 5V 3A power supply which connects using a conventional coaxial connector.
The RAM is a conventional stick of 64Mb PC-133. I have replaced this with a stick of 512Mb PC-100 memory with no problems.
Looking at the circuit board you can see towards the top left the empty space for a 40-pin IDE connector. I have soldered in an IDE connector and the unit will boot from an attached hard disk, but I had no luck with a CDROM in a DVD drive. (System halted with a "no boot device" message).
An email I received from 'bbsux' adds:
"By the way, adding a jumper or shorting JP6 sends power to the IDE port for flash drives that pull 5v power off of the ide port.
and adding a battery may not give you a real time clock. I tried using a slightly newer version of this board (1.31 vs your 1.21) and in DOS I couldn't get software that needs a real time clock to work.
Also adding the PCI will work. I put a pci ethernet card in it and I am using one of these as a router/firewall with M0n0wall on it... "
Note: JP6 is on the front of the board next to where the FDC connector would be fitted. This connects pin 20 on the IDE interface to +5V.
Any comments? email me. Last update June 2010