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Green circuit board with black memory chips, 240 gold pins, low-profile heatsink, DDR3 server module

A-Tech

A-Tech 4GB DDR3 1066MHz ECC Registered 240-Pin Server RAM

SKU CH-RT0K-5JAYV

4GB DDR3 1066MHz ECC registered 240-pin RDIMM with Hynix chips, Supermicro certified for server reliability

  • Total capacity4 GB
  • Rated speedDDR3 1066 (PC3 8500)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL3
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Supermicro certified for guaranteed server compatibility
  • 4 GB DDR3 1066 MHz ECC registered RDIMM
  • Quad-rank 4Rx8 Hynix chips for data integrity
  • 5 V standard DDR3 voltage for stable operation
  • 240-pin form factor fits registered DIMM slots

4GB DDR3 ECC Registered module

This 4GB DDR3 1066MHz ECC Registered DIMM is built for servers and workstations that require error-correcting memory. The quad-rank 4Rx8 organisation and 1.50V operation match the PC3-8500 standard for registered platforms.

240-pin RDIMM installation notes

The 240-pin RDIMM form factor seats in standard DDR3 registered slots, but the quad-rank density means some boards limit the number of modules per channel. Verify the system's qualified vendor list before fitting to avoid POST failures caused by rank-count limits.

Sustained load behaviour

ECC circuitry corrects single-bit errors on the fly during continuous operation, preventing silent data corruption in long-running workloads. Registered buffering reduces electrical load on the memory controller, helping stability when all slots are populated at the rated 1066MHz speed.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $29.99
Cheaper than about 90% of the 6,523 comparable items (median $188.99).
Total capacity 4 GB
Lower than about 95% of the 6,064 comparable items (median 32 GB).
Price per GB $7.50 per GB
Typical for this category: the median of 6,064 items is $7.25 per GB.

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameSuperMicro
Product lineSupermicro Certified
Model nameMEM-DR340L-HL04-ER10
Total capacity4 GB
Performance
Rated speedDDR3 1066 (PC3 8500)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL3
ECC supportYes
Buffer typeRegistered
Memory rank4Rx8
Power
Rated voltage1.5 V

Questions about this item

How can I verify the module is running at 1066MHz after installation?

Enter the system BIOS or use a hardware monitoring utility to confirm the memory speed reads DDR3 1066 (PC3-8500) and that ECC Registered operation is active.

What ships with the module and is anything else required?

The box contains one 4GB Hynix HMT151R7BFR8C-G7 RDIMM; no cables, brackets or additional components are included or needed for installation.

Should I choose the 4GB quad-rank 1.5V version or a different capacity?

Select this 4GB 4Rx8 1.50V module when your server requires a single quad-rank DDR3 1066 registered DIMM; match the exact rank and voltage specified by your system documentation.

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