Rosewill RC-209-EX - Manual (Page 5)

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User Manual e-SATA 4 Port PCI Adaptor with RAID RC-209-EX
Step by step photo installation of Magic Switch
. There are six SATA ports in RC-209-EX RAID adapter. We named these ports
character A through F. Ports A to D are internal SATA ports and E to F are
external SATA ports. By changing the jumper setting on RC-209-EX that allows
you to utilize 4 ports of this card. Please reference our photos below for the
proper jumper setting. Port A and B are always active. With different jumper
setting you can active port C, D, E and F by referencing the following photos.
2. Available port setting 3. Active Inactive
*Jumper setting for  pin and 2 pin close
– connect pin  and 2 on J, J2, J3 and J4.
*Jumper setting for 2 pin and 3 pin close
– connect pin 2 and 3 on J5, J6, J7 and J8.
3 PIN
2 PIN
 PIN
for exsample:
2 & 3 PIN close
E F
C
D
B A