Features: All modules undergo quality assurance testing to ensure dependable and reliable performance | Please verify the supported memory specifications of your system prior to purchase to ensure compatibility. brand new and high quality Built-in high quality chips for stable performance and high speed operation. High performance Memory upgrade designed for Desktop PC / Computers. High-quality circuit module board, effectively avoiding corrosion and wear, durable and easy to carry. The high memory speed of 2400MHz increases the speed of your computer and brings convenience to your life. Specifications: Model: DDR4 4GB computer memory Type: DDR4 Memory Frequency: 2400MHz Capacity: 4G Voltage: 1.2V Frequency: 2133 , 2400 , 2666 Number of pins: 240PIN Size: approx.69.9x30x3.7mm/2.75x1.81x0.15in Package Includes: 1PC x Memory Modules note: The memory has single-sided and double-sided, wide and narrow versions, shipped randomly.If you have special needs, please contact customer service. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!