Amazon.com: US Int'l Keyboard for Dell Latitude 7400 5400 5401 5410 5411 0GJXGM, No Backlit Without Pointer No Frame : Electronics
Amazon.com: USA US Layout New Laptop Keyboard for DELL Latitude 5520 5521 Precision 3560 3561 Grey Frameless with Backlight 0N7N16 PK133MM2B00 : Electronics
This tiny mechanical gaming keyboard is only $30 | PCWorld