You can install the led sending card inside! Like TS801D,DS801 or SD801D.
How to install the SD801 LED Sending card into SB-8 LED Sender ?
Please check this link:
Contact:LINSN LED
Phone:+86-137-8705-0055
E-mail:sales@linsnled.com
Company:Shenzhen Linsn LED Co.,Ltd.
Add:Building 11,SanLian Industry Park,SongBai Road,BaoAn District,Shenzhen,China.