Part number: u14,u28, n28,n56
SDRAM: 64M, 64M
NAND FLASH memory: 64M(up to 512M), 64M(up to 512M)
Power input: 110~240V, 110~240V
Power Output: 5V, 2A, 5V, 2A
Bluetooth USB adaper: Class I, >100m, Class I, >180m
Expand: 21, 21
Data rate: 100KB/s, 100KB/s

Temperature: -20~60, -20~60
Updating: Through USB flash driver, Through USB flash driver or Internet
Net port: /, 10 Ethernet
O/S: Linux, Linux
Battery: Button battery 200mAh, Button battery 200mAh
Size: 11.3cm(W)x13.5cm(L)x3.5cm(H), 11.3cm(W)x13.5cm(L)x3.5cm(H)
Weight: <200g, <250g
Color: Black or White, Black or white