Features: 100% brand new and high quality. 1.Cooling function: pure aluminum, heat absorbing memory, improve blue screen memory of death caused by overheating. 2. Protection function: better protection of your memory, especially the DDR2, DDR3, DDR4 particles, accidentally fell into the ground, very easy to ke is bad, memory because they can not be used. Can also effectively protect memory components from electrostatic attacks 3. Beautiful sex: perfect placement of all kinds of main board color, fans, and article lamp, greatly enhance memory and chassis and beautiful 4. Compatibility: compatible with DDR, DDR2, DDR3, DDR4, ECC desktop memory chips. Specifications: Item Type: Computer Memory Chips Cooling Heat Sink Material: Aluminum Color: Black/Blue/Red/Orange (Optional) Length: 12.7cm/5in (Approx) Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!