I don't know exactly how many different bits of hardware lurk under the VX0 banner, but, in a similar way to the SX0 range, I have encountered two. From the front they look identical, but turn them around you have an obvious difference on the back panel (see above).
My take on it is that initially (from 2006?) there were the Vxx models. These have varying amounts of flash and RAM and run either WTOS, Win CE, Linux or Windows XPe. The base hardware was a 1GHz VIA C3 with a CN400(?), had a standard VGA socket for video, two serial ports, a parallel port and a PCMCIA socket. In mid 2007(?) these transitioned to the VxxL models where the processor changed to a lower power 800MHz VIA C7 with a CN800(?), video output changed to a DVI socket, and one of the serial ports and the PCMCIA port were dropped. Manufacture of these units stopped in 2008(?).
I've also come across mention of the V90 Dual Video model (V90DV?) but I don't know whether this different hardware yet again, but I think it may be just a 'Y' cable used with the Vx0L hardware.
Anyway I either have or have seen mention of the following part numbers (not an exhaustive list):
Part no Model Flash RAM 902094-07L V90 512MB 256MB 902094-29L V90 512MB 256MB Internal Smart Card reader 902094-22L V90 512MB 512MB 902094-41L V90 1GB 512MB 902095-02L V30 64MB 128MB 902095-10L V30 64MB 128MB Internal Smart Card reader 902124-01L V90 Dual-Video 512MB 256MB 902124-04L V90 Dual-Video 512MB 512MB 902124-21L V90 Dual-Video 1GB 512MB 902132-02L V10L 128MB 128MB WTOS 902141-14L V90L 512MB 256MB XPe 902141-02L V90L 512MB 512MB XPe
Also of the various Vx0's and Vx0L's I've encountered I have 5 working Vx0Ls, 2 working Vx0s and 4 dead Vx0s. I don't know if there is any significance in that fact but the V90s do seem to have a reliability problem. At least a couple of my dead V90s did work initially and then stopped for no apparent reason.
I found the following information on Wyse's site:
Product Lifecycle Matrix Table for Wyse Thin Clients
Model Part Number EOL Last Build Version V10L
902132-xxL
(08/07/08)
6.2.0_08
V10L
902138-xxL
(05/11/10)
6.5.0_30
V30
902095-xx
(08/07/08)
B579
V30L
902122-xxL
(08/07/08)
B563.18
V30L
902139-xxL
902146-xxL(05/11/10)
B666
V50
902091-xx
(08/07/08)
6.3.2B40
V50L
902123-xxL
(08/07/08)
6.3.2.B54
V50L
902140-xxL
902147-xxL(05/11/10)
6.6.2_02
V90
902094-xx
(10/31/07)
B550
V90L
902124-xxL
(08/07/08)
B611
V90L
902141-xxL
902148-xxL(05/11/10)
B673
Any comments? email me. Last update May 2011