Western Digital Blue 4TB 2.5” SATA Internal SSD Key Features 4TB Internal SSD Up to 560MB/s Read Speed Compatible with Windows and Mac SATA 3 Interface 5-Year Limited Warranty Overview For high-end computing applications like gaming, HD media playback, or creative software, look to WD Blue 3D NAND SATA SSDs, with 4TB storage capacity. Western Digital 3D NAND technology helps enable sequential read speeds up to 560 MB/s and sequential write speeds up to 530 MB/s for fast system boot-ups, quick application responses, and rapid transfer speeds. Specifications Disk Type SSD 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