... compatible 3.small, light, compatible 4.fast delivery time ophthalmic A/B scan #CAS-2000B: Main configuration:USB 2.0 compatible, ... 5mmMeasure: ACD, Lens, Vitrous, Axial length, and its averageDISPLAY mode: B, B+B, B+A mode,IoL table calculation: Holladay, Hoffer-Q, SCDK, SRK-II ... fast delivery time.cas-2000B is not integrated A/B scanner. If you need integrated A/B scanner, you may order our cas-2000C ...