... 9001 2.USB 2.0 compatible 3.small, light, compatible 4.fast delivery time ophthalmic A/B ... scan #CAS-2000B: Main configuration:USB 2.0 compatible,Ultrasonic videoing ... based on windows 7/ windowsXP Technical specification:A-SCANB-SCANProbe: 10MHz, red internal fixable LEDProbe ... its averageDISPLAY mode: B, B+B, B+A mode,IoL table calculation: Holladay, Hoffer-Q, SCDK, SRK ...