Keystron 256MB DDR2 144pin 16-bit Memory Upgrade for Brother Laser Printer DCP-8110DN, DCP-8150DN, DCP-8155DN One (1) 256MB DDR2 144pin 16-bit memory upgrade Part#: HL533/256 100% compatible with lifetime replacement warranty Manufactured by Keystron, LLC Keystron is a registered trademark of Keystron, LLC