The new 20 characters by 2 lines vacuum florescent display USB units come with the capability to connect up to a 6 by 4 matrix style keypad. The VK202-24-USB is a robust and versatile product that is easily connected with one cable for power and communication. These units have found popularity in HTPC cases.
Please note these products are discontinued, and have limited availability, they are not recommended for new builds, for orders of 25 units please contact sales.