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Two green DDR2 memory sticks with gold contacts

Kingston Technology Corp.

Kingston Technology Corp. KTH-XW9400K2/8G 8GB (2 x 4GB) DDR2 667 memory upgrade

SKU CH-66VT-MT59R MPN KTH-XW9400K2/8G

8GB dual-channel kit of 240-pin DDR2 667 modules for HP/Compaq systems

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR2 667 (PC2 5300)
  • Rated voltage1.8 V
  • Product type240-Pin DDR2 SDRAM
  • Compatible systemsHP/Compaq
  • Key featuresDual Rank Mfgr's System P/N's: 408854-B21 (HP/Compaq); EV284
  • 8GB kit expands HP/Compaq workstation capacity
  • Dual-channel 2 x 4GB DDR2 667 configuration
  • 240-pin DDR2 SDRAM matches HP part 408854-B21
  • 80V operation meets PC2 5300 specification
  • Dual-rank modules optimise memory bandwidth

System-Specific DDR2 667 Kit

This Kingston 8 GB kit contains two 4 GB 240-pin DDR2 SDRAM modules rated at DDR2 667 (PC2 5300) and 1.80 V. It is built as a dual-channel kit validated for HP/Compaq systems using part numbers 408854-B21 or EV284AA.

Suitable for HP/Compaq DDR2 upgrades

The dual-rank modules suit owners of compatible HP/Compaq workstations or desktops that require DDR2 667 memory in matched pairs. Buyers whose systems demand a different DDR2 speed, a different voltage, registered ECC modules or a higher total capacity should look elsewhere.

DDR2 667 (PC2 5300) speed grade

The modules operate at the DDR2 667 (PC2 5300) data rate with 1.80 V supply voltage. Confirming that the target platform specifies this exact speed grade and voltage is the single check that decides whether the kit will function correctly.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $198.99
Cheaper than about 59% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB (2 × 4 GB)
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $24.87 per GB
Pricier than about 69% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameKingston
Model nameKTH-XW9400K2/8G
Total capacity8 GB (2 × 4 GB)
Product type240-Pin DDR2 SDRAM
Performance
Rated speedDDR2 667 (PC2 5300)
Memory
Heat spreaderNo
Power
Rated voltage1.8 V
Size & build
Shipping weight0.05 kg
Package size170 × 95 × 14 mm
Compatibility
Compatible systemsHP/Compaq

Questions about this item

What does the PC2 5300 rating mean for real-world bandwidth?

PC2 5300 indicates a peak transfer rate of 5300 MB/s per module.

Will the 240-pin DDR2 DIMMs fit my HP/Compaq workstation?

These 240-pin DDR2 DIMMs are built for HP/Compaq systems that accept DDR2 667 memory.

How do I install the two 4GB modules for dual-channel operation?

Insert both modules into matching-coloured DIMM slots — usually slots 1 and 3 — so the memory controller can run in dual-channel mode.

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