Samsung Internal SATA BLACK SH-224DB 24X DVD Burner Writer for Desktop PC - OEM Bulk Drive with No Software DVD+R/-R writing speed of 24X as well as DVD+R/-R DL writing speed of up to 8X Interface: SATA (Not IDE & Not PATA connection) Buffer Underrun Free technology, Speed Adjustment Technology (S.A.T), Magic Speed, Double O.P.C technology and Tilt Actuator Compensation (T.A.C) for smooth disc reading and enhanced writing reliability Read:DVD+R/-R(Single): 16X DVD+R/-R DL: 12X DVD+RW/-RW(Single): 12X Drive Type: Internal DVD+/-RW Dual Layer Drive