100% Original Wholesale Asrock C422 WS/IPMI C422 WSI/PMI EP2C621D12WS workstation motherboard or server motherboard

100% Original Wholesale Asrock C422 WS/IPMI C422 WSI/PMI EP2C621D12WS workstation motherboard or server motherboard

Here’s a detailed comparison table for ASRock C422 WS/IPMI, C422 WSI/IPMI, and EP2C621D12WS motherboards:

Feature	ASRock C422 WS/IPMI	ASRock C422 WSI/IPMI	ASRock EP2C621D12WS
Form Factor	SSI CEB (12″ x 10.5″)	SSI CEB (12″ x 10.5″)	SSI EEB (12″ x 13″)
Chipset	Intel C422	Intel C422	Intel C621
Socket	LGA2066	LGA2066	Dual LGA3647
CPU Support	Intel Xeon W-2100/3100	Intel Xeon W-2100/3100	Dual Intel Xeon Scalable (1st/2nd Gen)
Memory	8× DDR4 (Up to 512GB) Quad-channel ECC	8× DDR4 (Up to 512GB) Quad-channel ECC	12× DDR4 (Up to 1.5TB) Hexa-channel ECC
PCIe Slots	5× PCIe 3.0 (x16/x16/x16/x8/x8)	7× PCIe 3.0 (x16/x16/x16/x16/x8/x8/x8)	5× PCIe 3.0 (x16/x16/x16/x16/x16)
Storage	8× SATA3, 2× M.2	8× SATA3, 3× M.2	8× SATA3, 2× M.2
Networking	2× Intel GbE (I210-AT) + IPMI	2× Intel GbE (I210-AT) + IPMI	2× Intel 10G (X550-AT2) + IPMI
USB	6× USB 3.1 Gen1, 4× USB 2.0	8× USB 3.1 Gen2, 4× USB 2.0	4× USB 3.1 Gen1, 4× USB 2.0
Power Connectors	24-pin ATX + 2× 8-pin EPS	24-pin ATX + 2× 8-pin EPS	24-pin ATX + 2× 8-pin EPS
Special Features	–	Thunderbolt 3 header	Dual socket, 10G LAN
Target Users	Single-socket workstations	High-end single-socket workstations	Dual-socket servers

1. ASRock C422 WS/IPMI (Single-Socket Workstation)

Key Features

• CPU Support: Single Intel Xeon W-2100/3100 (LGA2066)
• Memory: 8× DDR4 DIMMs (Up to 512GB, Quad-Channel, ECC)
• Expansion:
  • 5× PCIe 3.0 x16 Slots (x16/x16/x16/x8/x8)
• Storage:
  • 8× SATA3 (6Gbps)
  • 2× M.2 (PCIe 3.0 x4)
• Networking:
  • 2× Intel Gigabit LAN (I210-AT)
  • Dedicated IPMI 2.0 (ASPEED AST2500)
• Form Factor: SSI CEB (12″ × 10.5″)

Best For

✔ Single-CPU workstations (CAD, 3D rendering)
✔ Virtualization & development servers
✔ Users needing ECC memory & IPMI

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2. ASRock C422 WSI/IPMI (Enhanced Single-Socket Workstation)

Key Upgrades Over C422 WS/IPMI

• PCIe Expansion:
  • 7× PCIe 3.0 x16 Slots (x16/x16/x16/x16/x8/x8/x8)
• Storage:
  • 3× M.2 Slots (vs. 2 on WS/IPMI)
• USB:
  • 8× USB 3.1 Gen2 (10Gbps) (vs. Gen1 on WS/IPMI)
• Thunderbolt 3:
  • Add-in card support (via header)

Best For

✔ High-end workstations needing more PCIe slots
✔ Content creators with Thunderbolt 3 storage
✔ Multi-GPU setups (AI/rendering)

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3. ASRock EP2C621D12WS (Dual-Socket Server)

Key Features

• CPU Support: Dual Intel Xeon Scalable (1st/2nd Gen, LGA3647)
• Memory: 12× DDR4 DIMMs (Up to 1.5TB, Hexa-Channel, ECC)
• Expansion:
  • 5× PCIe 3.0 x16 Slots (All x16)
• Storage:
  • 8× SATA3 (6Gbps)
  • 2× M.2 (PCIe 3.0 x4)
• Networking:
  • 2× 10G LAN (Intel X550-AT2)
  • Dedicated IPMI 2.0
• Form Factor: SSI EEB (12″ × 13″)

Best For

✔ Dual-CPU servers (cloud computing, databases)
✔ High-core-count workloads (HPC, virtualization)
✔ Enterprise storage with 10G networking