You can use this card, or PA-8T, but you should not use the next port.
The max throughput on PA-4T is 8Mb FullDuplex.
(so 2x 4Mb and 2x 0Mb) or (1x8Mb and 3x0Mb).
For PA-8T the max throuhgput is 16 Mb
regards,
diederik
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