Samsung 870 QVO 1TB 2.5" SATA III Internal SSD Solid State Drive. Model NumberMZ-77Q1T0 / 870 QVO. Model: MZ-77Q1T0 | 1TB Capacity | V-NAND Technology | PC Laptop Upgrade. Enhanced Speed: Reaches the maximum SATA interface limit of 560/530 MB/s sequential speeds to revitalize legacy hardware.