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Green rectangular circuit board with gold edge connectors and black memory chips

Hynix

Hynix HMT42GR7BFR4C-RD 16GB DDR3-1866 ECC REG DIMM

SKU CH-27JY-XQ698

Server-grade DDR3 module with ECC and registered design for stable 1866 MT/s operation

  • 16 GB capacity for demanding server workloads
  • DDR3-1866 speed for fast data throughput
  • ECC registered design protects data integrity
  • 42 mm module height fits standard DIMM slots
  • Hynix quality memory for reliable operation

Server memory module

This is a 16GB DDR3-1866 ECC registered DIMM built for server and workstation platforms that require error-correcting memory. The registered buffer reduces electrical load on the memory controller, allowing higher capacities per channel. It is sold as a new OEM component without retail packaging.

Suited for qualified platforms

This module fits systems that explicitly support DDR3 ECC registered memory and will not operate in standard desktop or laptop boards that lack ECC and registered-buffer capability. Buyers who need non-ECC unbuffered memory for a consumer motherboard should look at a different product.

Capacity and speed define fit

The 16GB density at 1866 MT/s determines whether this DIMM matches the slot population rules and maximum memory bandwidth of the target server. Verify the platform's qualified-vendor list before purchase.

How it compares

Measured against everything we stock in Cable Locks & Laptop Extras, at today’s prices. Recalculated every night.

Price $47.99
Pricier than about 81% of the 8,808 comparable items (median $16.99).

Specifications

No published specifications for this item yet.

Questions about this item

Should I choose the 16GB DDR3-1866 module or a different capacity for my server?

This module provides 16GB of DDR3-1866 capacity. Select it if your system requires registered ECC memory and has an available DIMM slot supporting this speed.

What does the 1866 rating mean for real-world server performance?

The 1866 rating indicates a data rate of 1866 MT/s. In a compatible server, this delivers higher memory bandwidth than slower DDR3 modules, improving throughput for multi-threaded workloads.

How does the DDR3 interface and registered design affect compatibility?

The DDR3 interface requires a motherboard with DDR3 DIMM slots. The registered design adds a buffer that reduces electrical load, allowing larger memory configurations in servers that support registered ECC modules.

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