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Green 184-pin DDR SDRAM module with black chips no heat spreader

Kingston Technology Corp.

Kingston Technology Corp. KVR266X72RC25/1GD 1GB DDR 266 ECC Registered server RAM

SKU CH-NJRP-Q4SW5 MPN KVR266X72RC25/1GD

1GB 184-pin DDR 266 (PC 2100) ECC registered server memory with CL2.5 latency and 2.5V operation

  • Total capacity1 GB
  • Rated speedDDR 266 (PC 2100)
  • CAS latencyCL2.5
  • Rated voltage2.5 V
  • Buffer typeRegistered
  • Product type184-Pin DDR SDRAM
  • ECC registered design protects data integrity in servers
  • DDR 266 speed rated at PC 2100 bandwidth
  • CAS latency CL2.5 reduces access delay cycles
  • 184 pin DDR SDRAM fits legacy server slots
  • Dual rank X8 architecture noted by manufacturer

Capacity and form factor

This is a 1GB DDR SDRAM module in an 184-pin DIMM format with registered ECC operation. It targets administrators maintaining legacy servers that require PC 2100 memory running at 2.50V.

Registered DDR 266 limits

The registered buffer adds one clock cycle of latency and the module is dual-rank X8, so it cannot support chipkill or SDDC error-correction modes. Systems that demand those features will not benefit from the extra protection.

Dual-rank X8 constraint

The KVR "D" designation means this stick is dual-rank X8 and will not support chipkill or SDDC technology. Buyers whose platforms require those specific RAS features must select a different module.

How it compares

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

Price $41.99
Cheaper than about 87% of the 6,523 comparable items (median $188.99).
Total capacity 1 GB
Lower than about 99% of the 6,064 comparable items (median 32 GB).
Price per GB $41.99 per GB
Pricier than about 90% of the 6,064 comparable items (median $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 nameKingston
Model nameKVR266 × 72RC25/1GD
Total capacity1 GB
Product type184-Pin DDR SDRAM
Performance
Rated speedDDR 266 (PC 2100)
Memory
CAS latencyCL2.5
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Power
Rated voltage2.5 V
Size & build
Shipping weight0.03 kg
Package size169 × 55 × 9 mm

Questions about this item

Should I pick the 1GB module or add a second stick for dual-channel?

Each module is 1GB and dual rank, so a single stick delivers the full rated capacity; add a second only if your server board has a second registered DIMM slot and you need more total memory.

What does DDR 266 (PC 2100) mean for actual throughput?

The module runs at 266 MT/s with CL2.5 latency, providing the standard PC 2100 bandwidth for registered DDR SDRAM systems.

Will the 184-pin registered DDR interface work in my motherboard?

The 184-pin registered DDR design fits only motherboards that accept registered DDR SDRAM; it will not work in slots for unbuffered DDR or later memory types.

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