... slaver controller -YM-H801RA, can control 122,880 pixel lights Max.2. Slaver LED controller - YM-H801RA, has four output ... ports, each slaver can control 3412 pixel lights Max. 3. LEDBuild—Installed on computer, program display effects of lights, ... 801RA, the slaver led controller. It can control 122,880pixels MAX. Under our own software LEDBuild, customers can realize many display ...