I noticed you also posted here
http://www.rage3d.com/board/showthread.php?t=34005622georgetok wrote:
(1) Can someone tell me how much bandwidth does 54 mm Express Card slot put out ?
There are 2 ExpressCard versions (1.2 and 2.0) each with 2 running modes (PCI-E 1x lane or USB2.0), below is the bandwidth for each of these:-
ExpressCard 1.2 USB 2.0 mode (480 Mbit/s)
ExpressCard 1.2 PCI Express mode (2,500 Mbit/s)
ExpressCard 2.0 USB 3.0 mode (4,800 Mbit/s)
ExpressCard 2.0 PCI Express mode (5,000 Mbit/s)
sourceIt is not clear on the Dell website which version of ExpressCard Slot in the laptop, the lack of "ExpressCard2.0" in any of the documentation makes me think it is version 1.2 in the laptop.
Note:
ExpressCard 2.0 georgetok wrote:
(2) Also how many lanes of PCIe that slot has ? ( x1, x4, x8, x16 )
x1 lane georgetok wrote:
(3) How do I find out above info ?
This is a good starting point -
http://en.wikipedia.org/wiki/ExpressCard georgetok wrote:
(4) Can I connect following PCIe Expansion box in it's Express Card slot ?
http://www.netstor.com.tw/_03/03_02.php?OTc=Yes although you will only get 2.5Gbit/s - 5Gbit/s if the laptop supports ExpressCard2.0.
georgetok wrote:
(5) If yes, how much bandwidth each slot of that box would receive ?
Many Thanks
The external box supports 20 lanes, as such, if all lanes are in use, then each lane would have
2.5Gbit/s / 20 = 125Mbit/s
5Gbit/s / 20 = 250Mbit/s