AMD Mainboard 7040 Series - Two lanes labeled as 15

[regaly]

There are double PCIe link(x1 Lane 15) between P52 M.2 wlan/bt slot and APU on page 1. I think one should be USB 2.0, but you've forget to edit after copy-paste.

[WizardTim]

Agreed, page 4 does show USB 2.0 (port 6) and a single PCIe x1 (lane 15) on the connector which is correct for E key M.2.

However PCIe 2.0 also doesn't make much sense as lane 15 on Phoenix is a PCIe 4.0 interface. This would also bandwidth limit WiFi 7 upgrades like the Intel BE200 so I assume that's a typo as well? Although I wouldn't be surprised if it's only qualified for 3.0 speeds due to routing.

[KosmX]

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  iSerial                 1 0000:c1:00.3

and BT is on this USB not on PCIe

Bus 001 Device 005: ID 0e8d:e616 MediaTek Inc. Wireless_Device

[JohnAZoidberg]

However PCIe 2.0 also doesn't make much sense as lane 15 on Phoenix is a PCIe 4.0 interface. This would also bandwidth limit WiFi 7 upgrades like the Intel BE200 so I assume that's a typo as well? Although I wouldn't be surprised if it's only qualified for 3.0 speeds due to routing.

It's PCIe Gen2 x4, which has a theoretical bandwidth of 2 GByte/s or 16 GBit/s. Plenty fast for WiFi