The Pana-Vue Pana-Scan Extra Negative Holder works with the APA101 Pana-Scan 35mm Slide & Film Scanner, the APA111 Pana-Scan Slide & Film Scanner, and the APA121 Pana-Scan Portable Stand Alone Slide & Film Scanner to convey up to six 35mm film negatives to the scanner. This is a replacement or additional holder for the scanners, which come with one holder for 35mm negatives.