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ASRock Rack ROMED8-2T Memory RAM 128GB 2S4rx4 DDR4 2666MHz (PC4-21300) RDIMM

ASRock Rack ROMED8-2T Memory RAM 128GB 2S4rx4 DDR4 2666MHz (PC4-21300) RDIMM

Best price now

$947.10at AmazonChecked Nov 11

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Price facts

  • Last seen at $947.10 at Amazon on Nov 11.

Our take on the ASRock Rack ROMED8-2T Memory RAM 128GB 2S4rx4 DDR4 2666MHz (PC4-21300) RDIMM

This is a single 128GB DDR4 registered DIMM (RDIMM) rated at 2666MHz, PC4-21300, in a 2S4Rx4 organization. It is built for the ASRock Rack ROMED8-2T server board, an EPYC 7002/7003 platform with eight DIMM slots. One module of this size fills a slot with a lot of capacity, which suits memory-hungry workloads like virtualization, databases and in-memory caching. Registered ECC buffered memory like this will not work in consumer desktop boards, so it is a server and workstation part only.

Best forOwners of the ASRock Rack ROMED8-2T boardVirtualization and database hosts that need large memory per slotWorkstations running many VMs or large in-memory datasets
Pros
  • 128GB in a single module leaves slots free for later expansion
  • 2666MHz matches the EPYC platform's native DDR4 speed
  • Registered ECC design for server-grade reliability
  • 2S4Rx4 organization is a common fit for EPYC boards
  • Explicitly listed for the ROMED8-2T, so compatibility is clear
Cons
  • RDIMM will not boot in consumer desktop motherboards
  • Only one module, so no matched kit for guaranteed dual-channel pairing
  • 2666MHz is slower than the fastest DDR4 server memory
  • 128GB RDIMMs can be harder to source and match later
  • No heatsink or RGB, which some builders expect

ASRock Rack ROMED8-2T Memory RAM 128GB 2S4rx4 DDR4 2666MHz (PC4-21300) RDIMM prices at every store

  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $947.10Free shippingChecked Nov 11
    Visit Amazon

Also available at

  • A-Tech MemoryCheck price at A-Tech Memory

Store links may earn us a commission.

ASRock Rack ROMED8-2T Memory RAM 128GB 2S4rx4 DDR4 2666MHz (PC4-21300) RDIMM price history

Lowest price we've seen: $947.10 on Nov 11 at Amazon. Tracked across 1 store since Nov 11.

About the ASRock Rack ROMED8-2T Memory RAM 128GB 2S4rx4 DDR4 2666MHz (PC4-21300) RDIMM

This is a 128GB DDR4 RDIMM memory module made as an upgrade for the ASRock Rack ROMED8-2T motherboard. It is a single module with ECC Registered error correction.

It runs at 2666MHz (PC4-21300) on 1.2V and uses a 288-pin form factor. It is intended for servers and workstations.

Designed for
ASRock Rack ROMED8-2T
Total capacity
128GB
Modules
1 x 128GB
Memory class
DDR4
Speed
PC4-21300
Frequency
2666MHz
ECC type
ECC Registered
Form factor
RDIMM
Rank
2S4Rx4 (8Rx4 3DS Octal Rank)
Pin count
288
Voltage
1.2V
Compatibility
Server and workstation

Questions and answers

Will this work in a regular desktop PC?
No. It is registered ECC buffered memory (RDIMM), which consumer Intel and AMD desktop boards do not support. It is meant for server boards like the ROMED8-2T.
Can I install just one of these?
Yes, the ROMED8-2T accepts a single DIMM, but EPYC platforms get the most bandwidth with all memory channels populated. One module gives capacity, not full channel bandwidth.
Is 2666MHz the right speed for this board?
2666MHz is the native DDR4 speed for EPYC 7002 and 7003 processors, so this module runs at rated speed without overclocking.
What does 2S4Rx4 mean?
It describes the module's organization: dual-rank, quad-rank DRAM packages, x4 data width. It is a standard registered ECC layout for large-capacity server DIMMs.
Do I need ECC support on the board?
The ROMED8-2T supports registered ECC memory, which this module is. ECC lets the system detect and correct single-bit errors, which matters for long-running server workloads.
Can I mix this with other memory?
Mixing different capacities, speeds or organizations in one system can cause instability or force slower timings. Matching modules is the safer choice for a server.
Where is the ASRock Rack ROMED8-2T Memory RAM 128GB 2S4rx4 DDR4 2666MHz (PC4-21300) RDIMM cheapest?
At Amazon, for $947.10, as of our latest check.
Where can I buy the ASRock Rack ROMED8-2T Memory RAM 128GB 2S4rx4 DDR4 2666MHz (PC4-21300) RDIMM?
2 stores we checked sell it, including Amazon, A-Tech Memory.

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