Yes, upload speeds vary by scanner: Digital Check CX30: Binary images only–100 Kilobits per second Digital Check 220: Binary images only–134 Kilobits per second Digital Check 230: Binary images only–334 Kilobits per second Digital Check 240: Binary images only–167 | 250 | 334 Kilobits per second (50 | 75 | 100 DPM) Check 4120: Binary images only–400 Kilobits per second Panini My Vision: Binary images only–100 Kilobits per second Panini My Vision X: Binary images only–300 Kilobits per second