This article covers Samsung 860 QVO 2TB 2.5 Inch SATA III Internal SSD (MZ-76Q2T0B.

Overview

The Samsung 860 QVO 2TB is a 2.5-inch SATA III internal SSD that leverages Samsung's QLC NAND flash technology to deliver high capacity at an affordable price point. Model number MZ-76Q2T0B/AM, this drive is positioned as an entry-level to mid-range storage solution, ideal for users who need ample space without breaking the bank. Powered by Samsung's in-house MJX controller and equipped with 2GB of DRAM cache (on the 2TB model), the 860 QVO achieves sequential read speeds of up to 550MB/s and write speeds of up to 520MB/s, effectively saturating the SATA III interface. While these numbers don't match NVMe drives, they represent a massive leap over traditional hard drives, offering roughly four times faster boot times and application loading. Released in December 2018, the 860 QVO series has become a popular choice for budget-conscious builders and those looking to breathe new life into older systems. It comes with a 3-year limited warranty and is backed by Samsung's reputation for reliable storage products.

Compatibility Guide

The Samsung 860 QVO 2TB uses the standard 2.5-inch form factor and connects via a SATA III (6Gbps) interface. This makes it compatible with virtually any desktop or laptop that has a SATA port and a 2.5-inch drive bay. Desktop PCs: Connect using a SATA data cable to the motherboard and a SATA power cable from the power supply. Most desktop cases include 2.5-inch mounting points, or you can use a 3.5-inch adapter bracket. Laptops: Fits into any 2.5-inch SATA drive bay. Note that many modern ultrabooks have moved to M.2 NVMe SSDs, so check your laptop's specifications before purchasing. * External Enclosures: Can be installed in a USB-to-SATA enclosure to create a portable external drive for backups or file transfers. One important consideration: SATA III is significantly slower than NVMe (max ~550MB/s vs. thousands of MB/s). If your system has an available M.2 slot, an NVMe SSD will provide much faster performance for OS and applications. However, for secondary storage or older systems without M.2 support, the 860 QVO is an excellent choice.

Product Info

The Samsung 860 QVO 2TB (MZ-76Q2T0B/AM) was launched in December 2018 as part of Samsung's QLC-based SSD lineup. It sits in the entry-level to mid-range market segment, prioritizing capacity and affordability over raw speed. Capacity: 2TB Interface: SATA III 6Gbps Form Factor: 2.5-inch NAND Type: Samsung 64-layer QLC NAND Controller: Samsung MJX (Maru) DRAM Cache: 2GB (2TB model) Sequential Read: Up to 550MB/s Sequential Write: Up to 520MB/s Random Read (4KB QD32): Up to 97,000 IOPS Random Write (4KB QD32): Up to 89,000 IOPS TBW (Total Bytes Written): 720TB Warranty: 3 years As of 2025, the drive is available on Japan for approximately ¥40,000, making it one of the most cost-effective ways to add 2TB of solid-state storage to a system.

Best Use Cases

Budget-Conscious Users Needing Bulk Storage: If you're storing large media libraries, game installations, or document archives and don't want to pay a premium for NVMe, the 860 QVO offers excellent value. It's a perfect drop-in replacement for a mechanical hard drive in a secondary storage role. Reviving an Older PC: For systems with only SATA ports (e.g., Core 2 Duo, early Core i-series), upgrading from an HDD to this SSD will dramatically improve everyday responsiveness. Boot times shrink from minutes to seconds, and applications open much faster. Secondary Drive in a Gaming Rig: Use a fast NVMe drive for your OS and most-played games, then install the 860 QVO as a secondary drive for older games, media, and backups. The SATA speed is more than adequate for game loading in most titles. Silent PC Builders: With no moving parts, this SSD operates silently, making it ideal for home theater PCs (HTPCs) or any build where noise reduction is a priority. This drive is less suitable for users who frequently write large files (e.g., video editors working with 4K footage) or those who need maximum random I/O performance for databases or virtualization.

Things to Consider

The Samsung 860 QVO uses QLC NAND, which has inherent write-speed limitations compared to TLC or MLC NAND. When the drive's SLC cache fills up during large continuous writes, performance can drop significantly to below 100MB/s. This makes it less ideal for write-intensive workloads like video editing scratch disks or server caching. TBW is rated at 720TB for the 2TB model, which is lower than TLC counterparts like the Samsung 860 EVO (1,200TBW for 2TB). For typical consumer use—web browsing, office work, media consumption—this is more than sufficient and will likely outlast the 3-year warranty period. Competitors in the same QLC space include the Crucial BX500 and SanDisk SSD Plus. The 860 QVO distinguishes itself with a DRAM cache, which improves random performance and

Product Disclosure (Amazon)

  • Manufacturer: サムスン(SAMSUNG)
  • Seller: DeliveringHappiness
  • Fulfilled by: DeliveringHappiness
  • ASIN: B07L31K2MK
  • Note: This article covers a manufacturer-made product based on Amazon listing details.