express cards

[OliverBGD]

Hi,

Since 99% of laptops don't have native eSATA and require you to buy express card eSATA adapter, I'm wondering how much of a bottleneck do they present because I'm sure they can't have the same transfer rates of a native motherboards or PCIE cards eSATA?

 

[UICompE02]

ExpressCards are basically a different form factor for PCI-Express x1. (of course, with an additional USB 2.0 port). That means the theoretical maximum transfer rate from one of these cards is 250MB/s in both directions.