The Matshita DVD-RAM UJ-840S is an internal DVD drive found in laptop computers. The DVD drive is able to read CD and DVD discs as well as burn both CD and DVD discs. The DVD-RAM UJ-840S drive is a single-unit device that obtains its electrical current from the laptop's main power supply. The Matshita DVD-RAM UJ-840S requires a device driver to bridge the interface between the device and the Windows operating system. Matshita is the parent company of Panasonic.
Reading and Burning Speeds
The Matshita DVD-RAM UJ-840S is capable of reading CD-ROM discs recorded at speeds up to 24X and DVD-ROM discs recorded at speeds up to 8X. The drive is capable of burning CD-R discs up to 24X and CD-RW discs up to 10X, DVD-R and DVD+R discs up to 8X, DVD-RW and DVD+RW discs up to 4X, and DVD-RAM discs up to 5X. The Matshita DVD-RAM UJ-840S is also capable of burning DVD+R DL discs up to 2.4X.
The DVD-RAM drive is also capable of reading homemade and commercial photo CDs (single and multisession), video CDs, CD-Text, CD-Extra, CD-DA and CD-ROM XA discs in Mode2 Form2 format.
The Matshita DVD-RAM UJ-840S measures 1/2 inch high, 5.03 inches wide and has a depth of 5.08 inches. The Matshita DVD-RAM UJ-840S weighs 190gr., contains a front-loading disc door and a front panel control for opening the disc carrying door.
The DVD-RAM drive's interface is an Integrated Drive Electronics (IDE)/Advanced Technology Attachment with Packet Interface (ATAPI), a standard interface for PC-platform computers. The Matshita DVD-RAM UJ-840S's driver is pre-loaded on laptops containing the drive and is also available for download from the Internet as well as directly from Matshita/Panasonic.
Electrical Power Specifications
The Matshita DVD-RAM UJ-840S requires a DC current from the laptop's power supply of 5 volts with a plus or minus five per cent fluctuation rate.
Operating Temperature and Humidity
The DVD-RAM drive requires an environment with an operating temperature between 41 and 122 degrees F with a relative humidity between 10 and 80 per cent with no condensation. If storing the DVD-RAM drive outside of your computer, store it in an environment between 60 and 140 degrees F with a relative humidity of 5 to 90 per cent with no condensation.