ASUS announced a new retail and OEM channel DVD writer drive, the DRW-24B5ST. Built in the conventional 5.25-inch SATA form-factor, the drive is said to pack energy-efficient components that reduce idle power draw (mounted disc idling, and no disc idling), by 50%. ASUS branded this feature as E-Green. Armed with 1536 KB of cache, the drive offers DVD access times as low as 160 ms, and CD access times as low as 140 ms. It writes DVDs at speeds as high as 24X depending on the media type, and CDs at speeds as high as 48X. It is priced at 2,500 JPY (US $31).