55-watt-hour lithium-polymer battery (with integrated charge indicator LEDs) providing up to 6 hours of battery life (2).
Writes DVD-RW and DVD+RW discs at up to 4x speed.Writes DVD-R and DVD+R discs at up to 6x speed.Writes DVD+R DL (double layer) discs at up to 2.4x speed.6x slot-loading SuperDrive (DVD+R DL/DVD±RW/CD-RW).24x slot-loading Combo drive (DVD-ROM/CD-RW).512MB (two 256MB SO-DIMMs) in 1.83GHz model.1GB (two 512MB SO-DIMMs) in 2.0GHz models.667MHz DDR2 SDRAM (PC2-5300 two SO-DIMM slots support up to 2GB.2MB shared L2 cache running at full processor speed on MacBook with 1.83GHz Intel Core 2 Duo processor.4MB shared L2 cache running at full processor speed on MacBook with 2.0GHz Intel Core 2 Duo processor.1.83GHz or 2.0GHz Intel Core 2 Duo processor.
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