Model No. UJ-230A  Blu-ray rewriter Interface SATA Type of loading Tray load Installation Internal Media support Reading  Writing  BD-ROM (Single Layer/Dual Layer) 4X - BD-RE Single Layer 2X 2X BD-RE Dual Layer 2X 2X BD-R Single Layer 4X 4X BD-R Dual Layer Dual Layer 2X 2X DVD-RAM 5X 5X DVD-R 8X 8X DVD-R DL (Dual Layer) 4X 4X DVD-RW 6X 6X DVD+R 8X 8X DVD+R DL (Double Layer) 4X 4X DVD-ROM Single Layer - 8X DVD-ROM Dual Layer - 8X CD-R 24X 24X CD-RW 16X 24X CD-ROM - 24X Buffer size 8MB Interface/Plug-in SATA DC Power supply Specification Size(LxWxD) 128x125x12.7 mm Weight 140+/-10g Power supply Voltage DC5V+/-0.25V Power consumption 1100mA System requirement CPU Intel:Intel(R) Core(TM)2 Duo CPU E4400 @ 2.00GHzCore Duo T2600 2.16GHZ or higherAMD:Athlon 64 X2 4600+ 2.4GHz or higher RAM Windows XP: 1 Gb or higherWindows Vista: 1 GB or higherWindows 7: 2 GB or higher Graphic card NVIDIA: GeForce 7600 GTAMD: ATI Radeon HD 2400 SeriesIntel: Intel G35 Express Chipset Sideport256M or higher Operation System Windows Windows®2000 professional SP4 Windows®XP Home edition SP2 Windows®XP Professional SP2 Windows®Vista Home Basic Windows®Vista Home Premium Windows®Vista Business Windows®Vista Ultimate Product feature •4x Speed on BD-R 25GB media•Backwards compatibility with all the most popular DVD and CD media formats, even DVD RAM discs •With the power of a Blu-ray burner comes the next generation of data storage technology. 4 X Speed, the FASTEST! Able to burn 25GB on a single layer Blu-ray disc and up to 50GB on a double layer Blu-ray disc, the Panasonic UJ-235 has created a future for high density and secure computer and data storage including backup, high definition movies, photos and anything else you can imagine.