second hand mini laptop computer 7 inch Windows XP Tablet PC with WIFI 3G

7 inch Tablet PC Android 2.2
1).Hard Disk:2G
2).Support: WIFI
3).Ram:16G SSD
CPU:
Intel Atom N270 1.6GHZ processor,
Chipset:
Intel 945GSE+ICH7
OS.:
support Windows XP /windows 7/linux,
Display:
7 inch Touch Screen 16:9, 800*480 pixels,
Memory:
1-2GB DDR2 RAM (2GB RAM is optional)
Storage:
16G SSD,(32GB SSD is optional)
Lan port:
10/100M ethernet access+ 802.11b/g WIFI Wlan port.
built-in:
0.3M camera (Front).rear camera is optional.
Sound System:
3.5mm/40mw stereo ouput, 3.5mm/-56dB MIC input, SRS stereo Audio,128MB Video Memory
Graphics Card:
Integrated Intel GMA 950 128M,
I/O Ports:
3*USB 2.0 ports,1*VGA port,1*Headphone jack,1*Microphone jack, 1*RJ-45 port for LAN,1*DC-In jack,1*SD/MMC card reader.
Power supply:
3cell 2200mah lithium battery, about 2-3 hour battery life, DC19V/3A, Operating Temp.: 0-40 degree, Operating Humidity: 20%-80%, Storage Temp: -20-60 degree.
Dimension:
227mm(L)*127mm(W)*26mm(H).