Actual items manufacturer or batch number may vary Fully tested before shipping Model: DDR2 SODIMM Capacity: 4GB Frequency: 800MHz Function: DDR2 200-pin Scope of application: Laptop Memory RAM pin count by type: DDR for Desktop: 184 pins DDR for Laptop: 200 pins DDR2 for Desktop: 240 pins DDR2 for Laptop: 200 pins DDR3 for Desktop: 240 pins DDR3 for Laptop: 204 pins Note: Maximum recognized memory depends on the operating system: - Windows XP: approximately 3GB - Windows 7 32-bit: approximately 2.26–4.5GB Before purchasing, please confirm compatibility with your laptop model. Common designations include: - PC2-4200 = DDR2 533MHz - PC2-5300 = DDR2 667MHz (compatible with DDR2 533MHz) - PC2-6400 = DDR2 800MHz (compatible with DDR2 667MHz and DDR2 533MHz) - PC2-8500 = DDR2 1066MHz Appearance and color may vary between batches; this does not affect functionality Color: Green Material: PCB Dimensions: 7 x 3 cm Package Contents: 1 x RAM module Note: Light reflection and display differences may cause slight variations in color compared to the image. Measurement error allowance: ±1–3 cm.