The Cheapest LED card for single or double color LED Display —–The TX-LU10 card
It’s only 2.9 USD and also have discount, if you have amount of the card need.
It’s be made of XLG company and max control 320*32 dots of LED display.
Yes it’s really a very small one, but it’s can work and very good price.
Express delivery 2.9 USD , if for FOB price it’s can be 2.47 USD.
And it’s only support U memory for edit the programs.