Cheap And Discounts 1.54 inch/2.42 inch OLED Monochrome Display Board plug in 24pin/23pin Dot Matrix SSD1309 128*64 Monochrome Screen Module Wholesale. Buy Directly From Merchant Aideepen Applied Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.