This is a White Label 1TB (1-Terabyte) SATA III (quiet & heavy duty) hard drive featuring with 5900RPM, 64 cache SATA 6.0GB/s hard drive with 1 year warranty. A white label product is a product made by major hard drive company that manufactured for other companies (OEM Hard Drive Reseller/VAR) re-brand to make it appear as if they made it or for large volume special application. This 3.5" SATA internal hard drive is fully compatible with any CCTV DVR, NAS, External Enclosure, PC/Mac Desktop Computer with SATA interface. Features: 3.5" SATA Hard Drive 1 Terabyte Capacity SATA 6.0Gbps Interface 64MB Buffer Size 5900 RPM Rotation Speed 1 Year Warranty