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Crucial

Crucial CT12864Z40B 1GB 400Mhz PC3200 DDR RAM

★★★★★4.2 (156 reviews)

Boost Your System's Performance with Reliable MemoryThe Crucial Technology 1GB DDR RAM module provides an easy and affordable way to improve your computer's speed and responsiveness. With its high-quality components and guaranteed compatibility, this memory upgrade will help you get the most out ...

$12.99*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

Boost Your System's Performance with Reliable Memory

The Crucial Technology 1GB DDR RAM module provides an easy and affordable way to improve your computer's speed and responsiveness. With its high-quality components and guaranteed compatibility, this memory upgrade will help you get the most out of your system.

  • Capacity: 1GB
  • Speed: 400Mhz
  • Type: PC3200 DDR RAM
  • Model: CT12864Z40B

Key Features

1GB PC3200 DDR 400MHZ 184PIN Desktop

MM 2.5V CL3 UNBUFF

Specifications

Capacity
1GB
Type
DDR RAM
Speed
400MHz (PC3200)
Pins
184-pin
Form Factor
Desktop
Voltage
2.5V
CAS Latency
CL3
Buffering
Unbuffered

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Pros & Cons

👍 Pros

  • This Crucial RAM module provides 1GB of PC3200 DDR memory, boosting system performance for compatible desktops.
  • With a speed of 400MHz, this memory helps process data efficiently, improving overall system responsiveness.
  • The module is designed as 184-pin Desktop RAM, ensuring direct compatibility with specific motherboard slots.
  • Its 2.5V operating voltage and CL3 unbuffered status are specific specifications that ensure proper system integration.
  • Upgrading with this module can extend the useful life of older desktop systems by enhancing multitasking capabilities.

👎 Cons

  • This specific DDR RAM is an older technology (PC3200 DDR), limiting compatibility to older desktop systems that support it.
  • The 1GB capacity may be insufficient for modern, demanding applications or extensive multitasking needs.
  • The 400MHz speed, while standard for its generation, is considerably slower than current DDR4 or DDR5 memory modules.
  • Installation requires opening the computer case and correctly seating the module, which might be a barrier for some users.
  • The 184-pin form factor is not compatible with newer motherboards that use 240-pin (DDR2/DDR3) or 288-pin (DDR4/DDR5) slots.

Frequently Asked Questions

This is a 1GB PC3200 DDR RAM module, operating at 400MHz.
This 184-pin DDR RAM is designed for older desktop systems and is not compatible with modern motherboards that use DDR4 or DDR5.
The Crucial CT12864Z40B operates at 2.5 volts.
CL3 refers to a CAS Latency of 3, indicating the delay before data is accessed, and "UNBUFF" means it is unbuffered memory.
No, this module is specified as 184-pin Desktop RAM and is not designed for laptop use.

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