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DS160PR412: AC-coupling

Part Number: DS160PR412
Other Parts Discussed in Thread: DS160PR421,

Hi 

The PCIE switching method is as shown in the figure below, two PCIEs share a slot Customers have the following questions about DS160PR412 & S160PR421

1. Does the RX AC-coupling red frame of PR421 still need capacitors?

2. For DS160PR412, the TX is placed close to the SLOT, so is DS160PR421 the same in the SLOT or close to the CPU 3. Are there two LAYOUT Guides?