Flexx 4GB ram ( 4GB x 1 ) 200-Pin SODIMM DDR2 PC2-5300 memory module

Flexx 4GB RAM (4GB x 1) DDR2 667MHz PC2-5300 200-Pin SO-DIMM Memory Module for Mac

Give your older Mac a noticeable speed boost with this Flexx 4GB DDR2 SO-DIMM memory module. It’s built for Macs (and compatible laptops) that use 200-pin DDR2 667MHz (PC2-5300) RAM, helping improve multitasking, reduce slowdowns, and keep vintage systems running smoother for everyday use.

Key Features:

• 4GB single-module upgrade (4GB x 1) — ideal for replacing or expanding existing RAM
• DDR2 667MHz (PC2-5300) for Macs and laptops requiring this specific memory type
• 200-pin SO-DIMM form factor (laptop-style module)
• Improves responsiveness for older macOS workflows and light multitasking
• Perfect for maintaining and extending the life of legacy Mac systems

Included:

• 1 x Flexx 4GB DDR2 667MHz (PC2-5300) 200-Pin SO-DIMM memory module

Product Q&A

Q: How do I know if this RAM is compatible with my Mac?

A: Your Mac must use 200-pin DDR2 SO-DIMM memory running at 667MHz (PC2-5300). If your system requires DDR3, DDR4, or 204-pin/260-pin memory, this module will not fit or work.

Q: Can I mix this 4GB stick with my existing RAM?

A: In many systems, yes — as long as the existing module is also DDR2 667MHz (PC2-5300) 200-pin SO-DIMM. For best stability, matching speed and specs is recommended.

Q: Will it work if my Mac currently has DDR2 800MHz RAM?

A: Only if your Mac officially supports DDR2 667MHz (PC2-5300). Some systems are picky about speed and may require the exact specification listed by the manufacturer.

Q: Do I need any software or drivers?

A: No. RAM is a hardware upgrade — once installed correctly, your Mac will detect it automatically on boot.

Q: My Mac boots but doesn’t show the full 4GB — is that normal?

A: Some older Macs have chipset/firmware limits that can reduce usable memory, especially with certain module configurations. If your model has a known limit, it may not utilise the full amount.

Specifications

• Capacity: 4GB (1 x 4GB)
• Memory Type: DDR2 SO-DIMM
• Speed: 667MHz
• Standard: PC2-5300
• Pin Count: 200-pin
• Module Type: Laptop/Notebook SO-DIMM

Compatibility

• MacBook: Late 2007 – Mid 2009
  Models: MacBook3,1; MacBook4,1; MacBook5,2
• MacBook Pro: Mid 2007 – Early 2008
  Models: MacBookPro3,1; MacBookPro4,1
• iMac: Mid 2007
  Models: iMac7,1 (20-inch and 24-inch)
• PC Laptops: Compatible with Intel- or AMD-based PCs that support 200-pin DDR2 SO-DIMM memory
• Memory Standard: Complies with JEDEC specification JESD79-3B