Epson DS-32000 - Document scanner - Dual CIS - Duplex - A3 - 600 dpi x 600 dpi - up to 90 ppm (mono) / up to 90 ppm (color) - ADF (120 sheets) - up to 40000 scans per day - USB 3.0 - Walmart.com
Ricoh / Fujitsu fi Series fi-7800 (PA03800-B405) ADF (Automatic Document Feeder) / Manual Feed, Duplex Image Scanner - Newegg.com
Avision AV5200 A3 60ipm USB Color Document Scanner+Duplex+ADF [AV3090] RRP$2199 | eBay
Epson WorkForce DS-60000 Flatbed & ADF scanner 600 x 600 DPI A3 White
Plustek T300
Microtek 11x17 (tabloid,a3) Flatbed at ScanStore
Amazon.com: Plustek SmartOffice S30 High Speed A3 Large Format Duplex Document Scanner, with 100-page Auto Document Feeder (ADF). Scan 12” x 17” Size or Legal-Size Document : Office Products