**Product Specifications:**

**Brand:** Crucial

**Products:** DDR5 Laptop Memory, DDR4 Laptop Memory, DDR5 Desktop Memory, DDR4 Desktop Memory

**Model:** X0000

**DDR5 Pin Count:** 262 pins

**DDR4 Pin Count:** 260 pins

**DDR5 Desktop Memory Pin Count:** 288 pins, with a center-aligned notch

**DDR4 Desktop Memory Pin Count:** 288 pins, with a slightly right-aligned notch

**How to Choose Compatible Memory:**

1. **Identify by Motherboard:**

- DDR5 slots are center-aligned, refer to DDR5 diagram

- DDR4 slots are not center-aligned, refer to DDR4 diagram

2. **Check Manufacturer's Website:**

- Refer to specifications on the motherboard manufacturer's official website

3. **Use Third-Party Software or Task Manager:**

- Download hardware detection software like "CPU-Z" or check memory information in the Task Manager

**Memory Purchase Notes:**

DDR5 and DDR4 memory modules are not interchangeable between desktops and laptops

Ensure compatibility with the motherboard's memory slot specifications

When using multiple memory modules, the system will run at the lowest frequency

Consider Crucial dual-channel memory kits for stable system performance

**Overclocking and Compatibility:**

DDR5 memory initial frequency is 4800MHz/5600MHz

Check motherboard support for overclocking and maximum memory frequency

Crucial Pro Series DDR5 memory offers preset overclocking settings and XMP 3.0 support

Manually overclocking may vary based on hardware components

Contact customer service for compatibility issues

**Compatibility with Different Memory Frequencies:**

Same-generation memory modules can be mixed, but higher frequency modules will downclock

For example, DDR4-3200 can replace DDR4-2666, maintaining the lower frequency

DDR5-5600 can replace DDR5-4800, maintaining the lower frequency

**Note:** The information provided is based on the specifications and guidelines from Crucial.