Western Digital Red SA500 4TB NAS 2.5” SATA Internal SSD Key Features 4TB NAS Internal SSD Up to 560MB/s Read Speed Compatible with Windows and Mac SATA 3 Interface 5-Year Limited Warranty Overview Boost your NAS system’s performance and responsiveness with the WD Red SA500 NAS SATA SSD. Since your NAS system is always on, a reliable drive is essential. Unlike standard SSDs, WD Red NAS SATA SSDs are specifically designed and tested for 24/7 usage. This durability together with efficient caching of big files make these drives ideal for OLTP databases, multi-user environments, photo rendering, 4k and 8k video editing and other demanding applications. With a 2.5” form factor and 4TB of storage, this SSD lets you optimize your existing or next NAS system for superior performance and endurance. Specifications Disk Type SSD NAS External? No Capacity 4TB Sequential Read 560MB/s Sequential Write 530MB/s Interface SATA 3 Compatibility Windows, Mac Dimensions 100 x 70 x 7 mm