One (1) R601 module with green board and a red plastic extraction handle attached by two rivets. The handle reads "DIGITAL EQUIPMENT CORPORATION MAYNARD, MASSACHUSETTS" in raised letters on the solder-side. The board on the solder side reads "PULSE AMPLIFIER R601H" along the left-edge and "2-73P" at the top right corner. There are two black inspection stamps near the handle on the component-side, one faint square and one circle. "FLIP CHIP" is visible through the substrate, between the rivets. A repeating pattern of "don" is printed in red on the board.