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ASRock Rack SPC621D8 ATX Server Motherboard Single Socket P+ (LGA 4189)

ASRock Rack SPC621D8 ATX Server Motherboard Single Socket P+ (LGA 4189)

Best price now

$803.43at AmazonObserved Nov 3, 2026, 8:02 AM

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Our take on the ASRock Rack SPC621D8 ATX Server Motherboard Single Socket P+ (LGA 4189)

The ASRock Rack SPC621D8 is an ATX server board for a single 3rd Gen Intel Xeon Scalable CPU on LGA 4189 with the Intel C621A chipset. It stands out for its 8 DIMM slots at up to 3200MHz, four PCIe 4.0 x16 slots and 13 SATA ports, all in a standard 12" x 9.6" ATX footprint. Remote management comes from an ASPEED AST2500 BMC with dual Intel i210 1GbE. At $803.43 at Amazon as of November 3, 2026, it is the only new price listed, so there is no recent range to compare against.

Best forHome lab and whitebox server builds
Storage servers needing many SATA drives
Builds that need PCIe 4.0 lanes for GPUs or NICs
Buyers who want ATX fit in a standard case
Pros
  • Four PCIe 4.0 x16 slots plus three x8 slots give wide expansion
  • 13 SATA 6Gb/s ports suit large drive arrays without a HBA
  • 8 DIMM slots at up to 3200MHz for memory-heavy workloads
  • Standard ATX size fits many desktop and rack cases
  • AST2500 BMC provides out-of-band management
  • Dual 1GbE from Intel i210 is well supported in Linux and ESXi
Cons
  • Single socket only, so no dual-CPU scaling
  • 1GbE networking is slow for modern storage traffic
  • No onboard 10GbE or SAS controller
  • LGA 4189 coolers and 3rd Gen Xeon chips add significant cost
  • Only one new price listed, so deal comparison is limited

ASRock Rack SPC621D8 ATX Server Motherboard Single Socket P+ (LGA 4189) prices at every store

  • AmazonNew

    Availability unknown

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    $803.43Free shippingObserved Nov 3, 2026, 8:02 AM
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ASRock Rack SPC621D8 ATX Server Motherboard Single Socket P+ (LGA 4189) price history

Lowest price we've seen: $803.43 on Nov 3 at Amazon. Tracked across 1 store since Nov 3.

What reviewers say

Owner feedback on this board is thin, but server-build users generally rate ASRock Rack boards for solid BMC and Linux support at lower prices than Supermicro. The common complaints are the 1GbE networking and the cost of LGA 4189 cooling and CPUs.

Pros
  • BMC and IPMI work well for remote management
  • Good PCIe lane count for the price
  • Stable under Linux and hypervisors
Cons
  • Only 1GbE onboard
  • Firmware updates can be fiddly
  • Cooler mounting for LGA 4189 is limited

Specifications

Form factor
ATXSource
Dimensions
12" x 9.6"Source
CPU support
Supports 3rd Gen Intel® Xeon® Scalable processorsSource
Socket
Single Socket P+ (LGA 4189)Source
Chipset
Intel® C621ASource
DIMM slots
8 DIMM slots (1DPC)Source
Max DIMM frequency
max. 3200MHzSource
PCIe x16 slots
4 PCIe4.0 x16Source
PCIe x8 slots
3 PCIe4.0 x8Source
SATA ports
13 SATA 6Gb/s (including 1 port from M.2)Source
Ethernet
2 RJ45 (1GbE) by Intel® i210Source
BMC controller
ASPEED AST2500Source

Questions and answers

Is this board worth it over a Supermicro X12 board?
It is usually cheaper and offers similar PCIe 4.0 and SATA counts. Supermicro has broader firmware support and more documented builds, so pick ASRock Rack if price and slot layout matter most.
Does it support 2nd Gen Xeon Scalable CPUs?
No. The LGA 4189 socket and C621A chipset are for 3rd Gen Intel Xeon Scalable processors only.
How much memory can I install?
Eight DIMM slots, one per channel, at up to 3200MHz. That supports up to 8 DIMMs of registered DDR4, with capacity set by the module sizes you use.
What cooler fits the LGA 4189 socket?
You need an LGA 4189-specific cooler, typically a 2U or 4U active or passive server heatsink. Desktop LGA 3647 or 1700 coolers will not mount.
What is in the box?
Retail boards typically ship with the I/O shield, SATA cables and a quick-start guide. Confirm the bundle with the seller, since OEM trays may include only the board.
When is it cheapest?
Only one new price was listed, $803.43 at Amazon as of November 3, 2026. Server boards like this tend to drop when a socket generation is replaced, so watch for clearance pricing.
Where is the ASRock Rack SPC621D8 ATX Server Motherboard Single Socket P+ (LGA 4189) cheapest?
At Amazon, for $803.43, as of our latest check.

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