Intel S4500 Enterprise Entry, Solid state drive, encrypted, 3.84 TB, hot-swap, 2.5", SATA 6Gb/s, 256-bit AES, for System x3250 M6 (2.5"); x3550 M5 (2.5"); x3650 M5 (2.5"). The 6Gbps SATA interface and Intel 3D NAND TLC Flash Memory technology combine in the Intel S4500 Entry SATA solid-state drives (SSDs) for Lenovo servers to offer a cost-effective solution with industry-leading performance.