Western Digital Ultrastar DC HC520 12TB internal hard drive 7200 RPM 256 MB 3.5" Serial ATA III

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MZ-77Q4T0BW

WD181KFGX

Best-in-Class for Enterprise
Samsung’s all-flash solutions for heavy workloads deliver unrivaled performance, reliability and capacity without bottlenecks.

Best-in-Class for Enterprise

Samsung’s all-flash solutions for heavy workloads deliver unrivaled performance, reliability and capacity without bottlenecks.

Samsung’s PCIe Gen 4-enabled PM1733 SSD will have double the throughput capabilities of current Gen 3 SSDs, giving it the highest performance of any SSD on the market today. The two NVMe SSD series come in two form factors, 2.5-inch and HHHL, with capacities ranging from 0.8TB to 30.72TB to suit the diverse needs of OEMs worldwide. The drives also ensure endurance of one or three drive writes per day (DWPD) over a five-year period.

Go big, do more
The 870 QVO is Samsungs latest 2nd generation QLC SSD and the largest of its kind that provides up to 8TB of storage. It offers an incredible upgrade for everyday PC users who want to ramp-up their desktop PC or laptop to the largest available storage on the market without compromising on performance.

Enhanced in every way
Achieving the maximum SATA interface limit of 560/530 MB/s sequential speeds, the 870 QVO features improved random speed and sustained performance compared to the previous 860 QVO. Intelligent TurboWrite accelerates write speeds and maintains long-term high performance with a larger variable buffer.

Enjoy max capacity
The 870 QVO is available in 1, 2, 4 and 8TB, and the 8TB model is by far the largest client SATA SSD. With the 870 QVO, users can now enjoy and thrive in the largest SSD computing environment ever.

Reliable and sustainable
The groundbreaking capacity of the 870 QVO doubles its reliability up to 2,880 TBW compared to the previous model 860 QVO and is backed by a limited warranty of 3 years. This formidable SSD provides further reliability with a refined ECC algorithm that enables a stable performance.

Upgrade with ease
Upgrading to the 870 QVO is made easy for anyone with a desktop PC or laptop that supports a standard 2.5-inch SATA form factor. Enjoying this terabyte SSD is as convenient as plugging in the 870 QVO into a SATA slot and letting the renewed migration software take care of the rest.

Samsung Magician software
Make your drive work like magic. The new and improved Samsung Magician 6.1 software will keep your SSD in check. You can easily manage your drive with a wide range of useful tools to keep up with the latest updates, monitor the drive's health and status or even enhance its performance.

The worlds number one for flash memory
Experience the superior performance and reliability that you can only get from the world's number one brand for flash memory since 2003. All firmware and components, including Samsung's world-renowned DRAM and NAND, are produced in-house, allowing end-to-end integration for quality you can trust.

For the Demands of Big Business Designed specifically with medium or large scale business customers in mind, WD Red™ Pro drives are available for up to 24-bay NAS systems. Engineered to handle high-intensity workloads1 in 24x7 environments, WD Red™ Pro is ideal for archiving and sharing, as well as RAID array rebuilding on extended operating systems such as ZFS or other file systems. These drives add value to your business by enabling your employees to quickly share their files and back-up folders reliably in your NAS solution. Exclusive NASware™ 3.0 Technology Our exclusive advanced firmware technology, NASware™ 3.0, enables seamless integration, robust data protection and optimal performance for NAS systems operating under heavy demand. Built into every WD Red™ Pro hard drive, NASware 3.0’s advanced technology improves storage performance by increasing compatibility, integration, upgradeability, and reliability. Built for Optimum NAS Compatibility WD Red™ Pro drives with NASware™ technology takes the guesswork out of selecting a drive. Optimized for NAS systems, our unique algorithm balances performance and reliability in NAS and RAID environments. Simply put, a WD Red™ Pro drive is one of the most compatible drives available for NAS enclosures. But don’t take our word for it. WD Red™ Pro drives are a reflection of extensive NAS partner technology engagement and compatibility-testing. Larger NAS Bay Shock Protection WD Red™ Pro drives are equipped with a multi-axis shock sensor that automatically detects subtle shock events and dynamic fly height technology which adjusts each read-write function to compensate and protect the data. This combination of technology further protects the drives in larger 24-bay NAS environments and helps increase hard drive reliability. 3D Active Balance Plus Our enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system, reduce the hard drive life span, and degrade the performance over time. Error Recovery Prevention Built specifically for RAID and NAS environments, WD Red™ Pro drives come equipped with error recovery controls as part of NASware™ 3.0 technology to help reduce drive fallout in RAID applications. Extended Drive Testing A NAS environment that has up to 24 bays is very demanding on a hard drive with added vibration and heat. This is why every WD Red™ Pro drive is shipped with extended thermal cycle burn-in testing to help ensure each drive is tested for extended reliable operation. Desktop drives vs. WD Red™ Pro Do right by your NAS and choose the drive purpose-built for NAS with an array of features to help preserve your data and maintain optimum performance. Take the following into consideration when choosing a hard drive for your NAS:

PM883, 2.5 inch, Serial ATA 6.0 Gbps, 3840 GB, 98 KIOPS/28 KIOPS, 1.3 (3yrs)

PM983, M.2, 1.92 TB

PCIe Gen4 x4/dual port x2, 1.92 TB, 2.5", 7000 MB/s

MZ-77Q4T0BW

18TB, 7200rpm, SATA, 272MB/s

Samsung

Samsung

Samsung

Samsung

Western Digital