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Green 240-pin DDR2 memory module with black chips and gold contacts

Kingston Technology Corp.

Kingston Technology Corp. KVR400D2S4R3/2G 2GB DDR2 400 ECC Registered server RAM

SKU CH-BGZ9-BNQKZ MPN KVR400D2S4R3/2G

2GB DDR2 400 ECC registered server memory module with CL3 latency and 1.80V operation

  • Total capacity2 GB
  • Rated speedDDR2 400 (PC2 3200)
  • CAS latencyCL3
  • Rated voltage1.8 V
  • Buffer typeRegistered
  • Product type240-Pin DDR2 SDRAM
  • ECC protection prevents data corruption in servers
  • Registered buffering stabilises heavy memory loads
  • DDR2 400 speed matches legacy platform specs
  • CL3 latency keeps timing tight
  • Single-rank design simplifies memory configuration

Server DDR2 module for legacy repairs

This 2 GB Kingston ValueRAM stick is a 240‑pin DDR2 SDRAM DIMM rated at DDR2 400 (PC2 3200). It carries ECC and registered buffering for data integrity in server boards. The module runs at 1.80 V with CL3 latency and a single‑rank layout.

DDR2 platform limits

DDR2 memory tops out at 400 MT/s and 1.80 V, so bandwidth and capacity per slot are far below later generations. Registered DIMMs add one clock cycle of address buffering, which the memory controller must support. Mixing registered and unbuffered modules on the same channel will prevent the system from posting.

Compatibility checks before ordering

Verify that your motherboard explicitly lists DDR2 registered ECC support and accepts 240‑pin DIMMs at PC2 3200 speed. Confirm the board’s maximum capacity per slot and total populated slots, as many DDR2-era servers cap well below modern densities. Ensure the BIOS is updated to the latest revision for proper SPD recognition.

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 2 GB
Lower than about 98% of the 6,064 comparable items (median 32 GB).
Price per GB $21.00 per GB
Pricier than about 82% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameKingston
Product lineValueRAM
Model nameKVR400D2S4R3/2G
Total capacity2 GB
Product type240-Pin DDR2 SDRAM
Performance
Rated speedDDR2 400 (PC2 3200)
Memory
CAS latencyCL3
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Power
Rated voltage1.8 V
Size & build
Shipping weight0.02 kg
Package size160 × 46 × 6 mm

Questions about this item

Should I choose the 2GB single-rank module or look for a dual-rank version?

This ValueRAM stick is a single-rank 2GB module; single-rank puts less load on the memory controller and is preferred when populating many slots on a registered DDR2 server board.

What does the DDR2 400 (PC2 3200) rating deliver in an actual server?

The module runs at 400 MT/s with CL3 latency at 1.80 V, providing the standard DDR2 400 data rate for compatible registered ECC platforms.

How does the 240-pin registered ECC interface limit capacity or speed?

The 240-pin registered DDR2 interface requires a motherboard that supports registered ECC DDR2; speed is capped at DDR2 400 and each DIMM presents a single-rank load to the memory controller.

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