1. onboard 12-port hub75 (support 32 scaning)2. supporting 12-bit color input (with 9th generation sending card)3. Using18-bit signal processor, and maximum support of 18 bits (260,000) grayscale (red, green, blue separately)Rv908 add the following functionality:1. onboard the 12 16 pin hub75 o interface, no extra hub needed2. support 12-bit input colors (9th generation sending card required)3. using18-bit signal processor, maximum support 18 bits (260,000) gray (each of red, green and blue)4. single maximum card supports 1024x256 pixels, and 1024 degrees of single pixel chromaticity correction5. supports single card color space conversion6. support configuration file readback7. support program replication8. supports hot backup with dual receiver cards for demanding performances screen9. supports pixel failure detection (requires dedicated chip support)10. support network cable ber test11. Support flat cable failure detection12. Support cabinet door monitoring (open / close)13. Two fan speed monitoring lines14. Three voltage monitoring lines: one for the system, two for the cabinet power15. Temperature monitoring16. Humidity monitoring (humidity sensor sold separately) 17. Smoke monitoring (smoke module sold separately)Material:plasticcolour:greenPackage Contents:1 x RV908M32 receiving cardOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.