???????????(Hp) Hp 1 Gb 90-Pin Ddr3 Dimm G6W84A

1 Gb 90-Pin Ddr3 Dimm-Dual In-Line Memory Module For Printer. Compatible With Hp Laserjet M604Dn M604N, And Hp Color Laserjet Enterprise M553Dn, M553N, M553X Accessory Type Dimm ; Dimensions: 7 X 5 1/4 X 1 Use E6B68A ; E6B67A ; B5L25A A ; B5 L26A