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Green rectangular circuit board with gold edge connector and black memory chips

Crucial

Crucial CT6464Z40B 512MB DDR400 desktop RAM

SKU CH-G63R-XWZ6G MPN CT6464Z40B

512 MB DDR400 desktop memory module rated at PC 3200 with CL3 latency and 2.60 V operation

  • Total capacity512 MB
  • Rated speedDDR 400 (PC 3200)
  • CAS latencyCL3
  • Rated voltage2.6 V
  • 512 MB capacity supports smoother multitasking
  • DDR400 speed moves data at PC3200 rates
  • CL3 latency reduces wait cycles per access
  • 60 V operation matches standard DDR specifications
  • Non-ECC unbuffered design fits typical desktop boards

Capacity and use

This 512 MB DDR400 module is built for older desktop systems that require PC 3200 memory. It suits owners restoring or maintaining a legacy platform where higher-capacity sticks are not supported.

Speed and latency

The stick runs at DDR 400 (PC 3200) with a CAS latency of CL3 and a rated voltage of 2.60 V. These specifications determine whether the module will post and run stably on a given motherboard.

Build integration

No heat spreader is fitted, so the module fits in tight slots and works with standard CPU coolers. It occupies a single DIMM socket and leaves remaining banks free for additional PC 3200 memory.

How it compares

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

Price $11.99
Cheaper than about 95% of the 3,647 comparable items (median $90.99).
Total capacity 512 MB
Lower than about 99% of the 3,251 comparable items (median 16 GB).
Price per GB $23.42 per GB
Pricier than about 90% of the 3,251 comparable items (median $6.75 per GB).

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Specifications

Product
Brand nameCrucial
Model nameCT6464Z40B
Total capacity512 MB
Performance
Rated speedDDR 400 (PC 3200)
Memory
CAS latencyCL3
Heat spreaderNo
Power
Rated voltage2.6 V
Size & build
Shipping weight0.01 kg
Package size174 × 126 × 14 mm

Questions about this item

Will this 512MB DDR400 module fit my desktop motherboard?

The module uses the standard 184-pin DIMM form factor for DDR400 desktop memory. Check your motherboard manual to confirm it accepts DDR400 (PC3200) DIMMs and has a free slot.

What do the CL3 and 2.60V ratings mean for stability?

CL3 indicates the CAS latency timing at DDR400 speed, and 2.60V is the required operating voltage. Your motherboard must support this voltage and be able to run at CL3 timings for the module to work correctly.

Can I add this stick alongside my existing DDR memory?

Mixing modules works best when speed, voltage and timings match. This stick runs at DDR400, 2.60V and CL3; your existing memory should share those specifications to avoid instability.

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