A:AnswerHello Joe - the M.2_1 Source (From CPU) supports up to PCIe 4.0 x4 and supports 2280/2260 devices the M.2_2 Source (From CPU) supports up to PCIe 4.0 x4 , supports 22110/2280/2260 devices.
A:AnswerHello Joe - here are all of the USB Connections. Front:
1x USB 3.2 Gen 1 Type A (5 Gbps)
1 x USB 3.2 Gen 1 Type C (5 Gbps)
Rear:
4x USB 2.0
2x USB 3.2 Gen1 Type A (5 Gbps)
2x USB 3.2 Gen2 Type A (10 Gbps)
A:AnswerPre built PCs generally use a mixture of compatible parts from various vendors. There is no guarantee you will get a certain brand or model. If you prefer certain brands your best option is to build your own.