Specifications Summary: Screensize: 2.5 in, The S4520 SSDs have the following features:. 2.5-inch drives in multiple form form factors. Cost-effective Intel 3D NAND TLC Flash Memory. Endurance of up to 3 drive writes per day (DWPD) for 5 years, using Intel Standard Endurance Technology (SET). SATA TLC solid-state drive with high read performance and consistently low latencies to fulfill client needs in the enterprise space. High reliability and enhanced ruggedness. Energy savings, with typical write power consumption as low as 2.3 W per drive. Absence of moving parts to reduce potential failure points in the server. S.M.A.R.T. support. Advanced Encrypting Standard (AES) 256-bit encryption. Full end-to-end data path protection. Thermal throttling to extend the life of the drive. Enhanced power loss data protection. https://lenovopress.lenovo.com/lp1503-thinksystem-s4520-read-intensive-sata-6gb-ssds. .