Genuine Hitachi-LG Data Storage (HLDS) GSA-U10N Ultra Slim DVD-RW Optical Drive Burner Player for Laptop Notebook Dell Latitude D420, D430, D430N, PR09S Media Base and Most Systems Requiring a 9.5mm ATAPI Ultra Slim Drive, Dell Media Base Part Numbers: HJ119, KJ410, NT286 PR09S, Compatible Dell Part Number HP303 Read DVD+RW - 8x CAV; Read DVD-RW - 8x CAV; Read DVD+R - 8x CAV; Read DVD+R Double Layer - 4x CAV Read DVD-ROM (Single Layer / Dual Layer) - 8x CAV Read CD-ROM/ R/ RW - 24x CAV; Write DVD+RW - 2.4x CLV, 4x ZCLV, 6x ZCLV; Write DVD-RW - 2x CLV, 4x ZCLV, 6x ZCLV Guaranteed for Latitude D420, D430, D430N PR09S Media Base Will fit MOST systems that require 9.5mm Ultra Slim Drives. Check connection and compatibility carefully.