http://www.avision.com/usa/products/av320plus.html

AV320plus
General spec.
Document feeding mode  Auto document feeder
Auto Document Feeder  Included
Technology  CCD image sensor
Optical resolution  600 dpi
Output Resolution  75, 100, 150, 200, 300, 400 and 600 dpi
Output format  B&W, grayscale,24 bit color
Paper size  ADF min. 3.5 in x 2 in
( 88 mm x 50 mm )
ADF max. 11.69 in x 17 in
( 296 mm x 431 mm)
ADF capacity  100 sheets
Scanning speed
(B&W@200 dpi, A4)  50 PPM/100 IPM
Interface  
USB2.0
Recommend daily duty  Up to 5,000 pages
Power source  Input:100~240VAC, 50/60 Hz
Output:24V, 0.85A
Power consumption  <38.4W
Temperature  10°C to 35°C (50&DEG;F TO 95&DEG;F)
Humidity  10-85%RH
Dimensions
( H x W x D )  9.8 in x 16.5 in x 8.5 in
(276 mm x 426 mm x 218 mm )
Weight  Approximate 10.3 kg ( 22.6 lbs )
Driver  ISIS Driver
TWAIN Driver
 (PPM=page per minutes, IPM=image per minutes, dpi= dots per inch)