839.99
699.99
Product may differ from images shown based on configuration.
  • Condition

    Manufacturer Refurbished

    Certified refurbished by EuroPC with the same reliability and performance as brand new. May have cosmetic blemishes.

  • Warranty

    EuroPC 1 Year Return to Base Warranty

    Covered directly by EuroPC warranty assist for 1 Year for repair or replacement of parts deemed defective. Includes offsite service after diagnosis.

  • Delivery

    Next Day Delivery Available! Order before 3pm*

    Order before 3pm (GMT) for next day UK mainland delivery. EuroPC provide a next-day delivery service on products ordered before 3pm (GMT) - excluding weekends and public holidays. Please note: if you select a custom build server or request any alterations to your order, this may result in a delay in delivery while our technicians work on your order.

  • Returns

    30-day Money Back Guarantee

    If you change your mind, or are not fully satisfied with your purchase, please contact our customer service team on Tel: +44 (0) 345-218-0500 or send us an email to customerservice@europc.co.uk and we’ll sort out your return.

  • Go Green

    Helps prevent electronic waste

    Buying refurbished or renewed computer equipment helps reduce the ever-increasing volumes of e-waste being generated every year, extending the life-cycle over and over again.

SK Hynix 16GB DDR5-6400MT/s

ECC RDIMM, Server Memory P/N: HMCG78AHBRA478N (SKU: 173351)
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Warranty

Warranty

Please ensure that you select the correct make and model, as warranty extensions are only valid for matching systems. Please note that these warranties are non-refundable.



  • EuroPC 1 Year Return to Base Warranty Included 0.00 0.00
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Software

Windows Server Licenses

Select your Windows Server License
  • Included 0.00 0.00
  • 1199.99 999.99
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Description

The SK Hynix HMCG78AHBRA478N 16GB DDR5-6400 ECC RDIMM is a high-performance server memory module developed for enterprise environments where reliability, scalability, and bandwidth are critical. Featuring a 16GB capacity, DDR5 technology, and a fast 6400MT/s data rate, this module delivers significantly increased memory throughput compared to previous DDR4 generations, helping to accelerate virtualisation, database operations, cloud infrastructure, and other demanding workloads. Built as a 1Rx8 Registered DIMM with ECC error correction, it provides enhanced data integrity and system stability for mission-critical applications.

Designed for modern server platforms, the HMCG78AHBRA478N utilises a 288-pin RDIMM form factor and operates at a low 1.1V, helping to improve power efficiency while maintaining consistent performance under sustained workloads. The registered architecture reduces electrical load on the memory controller, allowing servers to support larger memory configurations without compromising reliability. With a CAS latency of CL52 and support for PC5-51200 bandwidth, this module is well suited for enterprise servers, high-density virtualisation hosts, storage systems, and data centre deployments requiring dependable DDR5 memory performance.

Ideal as an upgrade or replacement module, this SK Hynix DDR5 RDIMM is manufactured using high-quality enterprise-grade DRAM components and is compatible with a wide range of current-generation server platforms that support DDR5 ECC Registered memory. Its combination of high bandwidth, ECC protection, and low operating voltage makes it an excellent choice for businesses looking to maximise server responsiveness, improve workload efficiency, and maintain long-term system stability. Whether expanding existing memory capacity or building a new server configuration, the HMCG78AHBRA478N offers the performance and reliability expected from one of the industry's leading memory manufacturers.

Specification

  • EuroPC SKU 173351
  • Manufacturer SK hynix
  • Warranty EuroPC 1 Year Return to Base Warranty
  • Condition Manufacturer Refurbished
  • Grade Refurbished with Light Cosmetic Blemishes
  • MPN HMCG78AHBRA478N
  • Memory Capacity (Total) 16 GB
  • Memory Speed Data Rate (MT/s) DDR5-6400
  • DIMM Type ECC RDIMM (Registered)
  • Memory Module Socket 288-pin

Delivery

  • Next Business Day Orders placed before 3pm will be shipped on a next business day service with a courier. You will receive tracking information via email.
  • Next Business Day - Timed Service You can upgrade to a timed service for an additional charge. Please contact us for details.
  • Saturday service For orders placed before 2pm on a Friday you can upgrade to a Saturday delivery service for an additional charge. Please contact us for details.
  • Pallet Freight Larger orders may need to be shipped as pallet freight. Our team will contact you to discuss delivery arrangements.
  • Delivery Costs UK delivery starts from £7. The exact delivery cost will be calculated during checkout based on the size and weight of your order.
  • Configured Orders Any items which are being configured to order require an extra 24 hours to build and test prior to shipping. You will receive an update once your order is confirmed.
  • Restrictions Next day delivery cannot be guaranteed to Northern Ireland, offshore islands and some parts of Northern Scotland.

Need it urgently?

Contact our customer service team on Tel: +44 (0) 345-218-0500 or send us an email to customerservice@europc.co.uk for priority handling!

Estimated Delivery Times:

  • UK: Next-day or standard (2-3 days)
  • EU: 3-5 business days
  • US & Rest of World: 5-7 business days

For more details, please check our Deliveries page and/or FAQs

Payment

  • Credit & Debit Card Payments We use Braintree payment gateway to securely handle credit card information. Card verification is used to verify that the card data matches what the issuing bank has on file.
    Braintree verified
  • PayPal Payments When paying via PayPal, you will be re-directed to the PayPal payment gateway to complete your payment.
  • Electronic Bank Transfer You can instruct your bank to send money directly into the EuroPC bank account. For assistance, contact our customer service team on +44 (0) 345-218-0500 or email customerservice@europc.co.uk.

Reviews

SK Hynix 16GB DDR5-6400MT/s
ECC RDIMM, Server Memory P/N: HMCG78AHBRA478N

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