updated 11:00 pm EDT, Tue July 20, 2010
Adapter reads 170MB/s, writes 120MB/s, bootable
OWC has launched a new eSATA ExpressCard adapter for MacBooks. The card, which is rated for 3GB/s, is hot swappable and fits flush inside the MacBook frame, making for easy transport within the MacBook. The new card is ACHI compliant, requiring no drivers for any Mac notebook running Mac OS X 10.5 or higher.
In testing, the card is said to be capable of 170MB/s read speeds and 120MB/s write speeds using external SSD-based eSATA drives. It supports up to five disk drives on a JMicron JMB360 chipset. The ExpressCard is bootable for MacBooks with any Core 2 Duo chips, which cover all but the first generation.
The new eSATA ExpressCard requires Mac OS X 10.4, with v10.5 or v10.6 required for hot-swapping. It also supports Windows 2000 and higher, including Windows 7. The card will cost $40 but is currently on sale for $33.