Is the DR-G2110 good for scanning A3 documents?

Yes. It accepts A3 as well as A4, so it suits mixed-size batches such as drawings, ledgers and forms. Check that your feeder and output tray have room for the paper sizes you scan most.

Does it work with Macs?

No. Canon lists Windows as the supported operating system for this model. Mac users would need a Windows PC or a different scanner.

Can it connect over a network?

No. The interface is USB, so the scanner connects directly to a computer. For shared use, plan to attach it to a workstation that others can access.

What software does it use?

It works with Canon's CaptureOnTouch software and ISIS/TWAIN drivers, which integrate with most document management systems. Confirm your capture software supports these drivers before buying.

How does it compare with Canon's smaller office scanners?

The DR-G2110 is a production-class unit with A3 support and higher-volume handling than Canon's compact DR-M and DR-C office models. The smaller models suit light desktop use; this one suits busy records rooms.

Expect the scanner unit, power supply, USB cable and setup documentation. Software and drivers are downloaded from Canon's support site, so check the exact bundle with the seller.