Cheap And Discounts Ruida RD RDC6344G 7" Touch Panel Co2 Laser DSP Controller for Laser Engraving and Cutting Machine RDC DSP 6344G Wholesale. Buy Directly From Merchant QDLASER Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.