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Green rectangular DDR2 stick with gold contacts and black chips

SK hynix

SK hynix 1GB DDR2 PC2-6400 800MHz CL5 240-pin desktop RAM

SKU CH-XBR9-Y4R7T

Adds 1 GB of DDR2 desktop memory at 800 MHz with CL5 latency on a 240-pin DIMM

  • Total capacity1 GB
  • CAS latencyCL5
  • 1GB capacity adds responsive multitasking headroom
  • DDR2 PC2-6400 interface delivers 800MHz data throughput
  • CL5 latency tightens timing for snappier access
  • 240-pin DIMM fits standard desktop motherboard slots
  • Brand-new SK hynix module ensures reliable operation

1GB DDR2 desktop memory module

This SK hynix DIMM provides 1GB of DDR2 memory for desktop systems using the PC2-6400 standard. It is suited for older workstations or legacy builds that require a single 240-pin module to restore operation or meet minimum capacity requirements.

PC2-6400 interface at 800MHz with CL5 latency

The module operates at the 800MHz data rate defined by the PC2-6400 specification with a CAS latency of CL5. DDR2 platforms cannot exceed this bandwidth ceiling, so the module will not deliver higher throughput even if the motherboard supports faster ratings.

Replaces failed or missing DDR2 DIMMs in legacy

The upgrade is worthwhile when a system will not boot due to a defective stick or when the installed capacity falls below the operating system minimum. It does not benefit platforms that have migrated to later memory generations or require densities beyond 1GB per slot.

How it compares

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

Price $8.99
Cheaper than about 98% of the 3,647 comparable items (median $90.99).
Total capacity 1 GB
Lower than about 98% of the 3,251 comparable items (median 16 GB).
Price per GB $8.99 per GB
Pricier than about 63% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Total capacity1 GB
Memory
CAS latencyCL5

Questions about this item

What does the 1 GB capacity mean for a DDR2 system?

One gigabyte adds a single DDR2 module to a desktop, giving extra room for the operating system and everyday applications on platforms that use 240-pin DIMM slots.

What does the PC2-6400 800 MHz rating deliver once installed?

The module runs at 800 MHz with a peak transfer rate of 6400 MB/s, so the memory bus moves data at that speed when the motherboard supports the same DDR2 standard.

How does the 240-pin DDR2 interface limit performance in practice?

The 240-pin DDR2 connection caps the memory at 800 MHz and CL5 latency, so the system cannot exceed that bandwidth or timing even if the processor or chipset could run faster memory.

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