Dell DU-8A5HH Latitude E6320 E6420 ATG E6420 E6520 E6530 Series Laptop SATA DVD±RW Rewritable Optical Drive TTYK0 0TTYK0 CN-0TTYK0 TYRJC 0TYRJC CN-0TYRJC.Dell Part Number: TTYK0 0TTYK0 CN-0TTYK0Model Number: DU-8A5HHCompatible Part Numbers: TYRJC 0TYRJC CN-0TYRJCCompatible Models: Dell Latitude E6320 E6420 ATG E6420 E6520 E6530 Series