Each memory module undergoes various types of manual testing to ensure reliable performance across different application environments, delivering both high performance and stability for users. Whether you're a general user, gamer, or computer enthusiast, you'll experience improved system performance with this memory upgrade. Flash memory vendors use decimal arithmetic (1MB = 1000KB, 1GB = 1000MB), while operating systems use binary arithmetic (1MB = 1024KB, 1GB = 1024MB). As a result, there may be a difference between the displayed capacity and the nominal capacity of the product. This is normal and does not affect the authenticity or functionality of the item. Specification: Type: DDR3 Capacity: 4GB Frequency: 1600MHz Working Voltage: 1.5V Memory Channel: Dual Channel Pins: 240pin Unbuffered, Non-ECC, Non-Registered Color: Blue Material: PCB Size: 13.3 x 3cm Package Contents: 1 x DDR3 4GB Desktop Memory RAM (Other items shown in images are not included.) Note: Lighting and display settings may cause slight variations in the color shown in images compared to the actual item. Measurement tolerances may vary by ±1–3cm.