PioData S21 Internal Super Multi Drive 24X Optical Drives DVR-S21DBK-PLUS (W/ Overburn (Bulk))

[Highly accurate and reliable CD & DVD recording] Supports full range of common DVD & CD formats including DVD+/-R, DVD+/-RW, DVD-RAM, CD-RW and CD-R.
[Enhanced Recording Stabilization Control] Ensures all drives in a single duplication environment burn uniformly to avoid disproportionate speed fluctuations, which lead either to failed discs or less compatible completed discs.
[DVD+R DL overburn] Expands the writing capacity from 8.5GB up to 8.7GB* (*Based on media compatibility), to allow the user to capture more content on a single DVD+R DL disc.
[Industrial tray gears & pulleys] provides a more stable disc loading tray for a longer life cycle (1 cycle equals 1 tray extend from and then return into the drive)
[No Donut Ring] Prevents uneven concentric ring patterns causing \u201cDonut Rings\u201d on the recording layer