How much RAM can the motherboard support and what type is it?

The motherboard can support up to 2TB of 3DS ECC RDIMM, DDR5-5600MT/s in 8 DIMM slots.

What type of processors does the Supermicro X13SEW-TF Server Motherboard support?

The Supermicro X13SEW-TF Server Motherboard supports 5th and 4th Gen Intel® Xeon® Scalable processors.

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Supermicro X13SEW-TF Server Motherboard, 5th/4th Gen Intel® Xeon® Scalable processors, Single Socket LGA-4677 (Socket V0) supported

5th/4th Gen Intel® Xeon® Scalable processors, Single Socket LGA-4677 (Socket V0) supported, CPU TDP supports Up to 350W TDP
Intel C741® Chipset
Up to 2TB 3DS ECC RDIMM, DDR5-5600MT/s (1DPC) in 8 DIMM slots
1 PCIe 5.0 x8 ( in x16)1 PCIe 5.0 x32 M.2 Interface: 1 PCIe 3.0 x2 M.2 Form Factor: 2280, 22110 M.2 Key: M-Key
10 NVMe ports PCIe 5.0 x8 via 5 MCIO connectors
Dual LAN with 10GBase-T with Intel® X550
2 SuperDOM with built-in power
I/O: 1 VGA, 2 COM, 1 TPM header
4 USB 3.2 Gen1 (2 rear, 2 via header), 3 USB 2.0 (2 rear, 1 via Type-A)
Intel® C741 controller for 10 SATA3 (6 Gbps) ports