Engineered to deliver high performance and reliability to commercial and enterprise NAS environments, the 20TB Red Pro 7200 rpm SATA III 3.5" Internal NAS HDD from WD is well-suited for multimedia and creative pros, medium to large businesses, and commercial and enterprise NAS systems. Able to work in RAID-optimized NAS systems with an unlimited number of drive bays, this 20TB drive operates using a SATA III 6 Gb/s interface, a 512MB cache, and a rotational speed of 7200 rpm, which all help to ensure uninterrupted data transfers with a rate of up to 268 MB/s. This drive also features high levels of reliability, with 600,000 load/unload cycles, < 1 in 10¹⁵ non-recoverable read errors per bits read, a workload rate of 550TB per year, dual-plane balance control technology, and 2.5 million hours MTBF. Shock protection is provided by a multi-axis shock sensor and WD's NASware helps increase system compatibility, allowing Red Pro drives to be more easily integrated with your existing network infrastructure.

40TB Storage Capacity (2 x 20TB)    3.5" Form Factor    SATA III 6 Gb/s Interface    512MB Cache    7200 rpm    Data Transfer Speeds up to 268 MB/s    600,000 Load/Unload Cycles    2.5 Million Hours MTBF    Multi-Axis Shock Sensor    NASware Technology

• 20TB storage capacity
• For RAID-optimized NAS systems with an unlimited number of bays
• Workload rating of up 550TB per year and up to a 2.5 million hours MTBF

• Multimedia creative pros
• Medium to large businesses
• Commercial and enterprise NAS systems

Western Digital's exclusive NASware technology fine tunes drive parameters to match NAS system workloads, which helps increase performance and reliability.

WD Red Pro hard drives are designed to handle the rigorous demands of high-intensity 24/7 multi-user NAS environments and increase system durability.

Western Digital partners with a wide range of NAS system vendors for extensive testing to ensure compatibility with most NAS enclosures.

WD Red Pro drives include Rotation Vibration (RV) sensors that anticipate and proactively counteract disturbances caused by increased vibration. By dispersing excess vibration across the drive chassis, turbulence is minimized, performance is maintained, and drives are protected.

WD Red Pro hard drives include a multi-axis shock sensor to detect subtle shock events and automatically compensate with dynamic fly height technology to further protect the drives in NAS enclosures.

Western Digital stands behind their NAS storage solutions with the assurance of a limited 5-year limited warranty and world-class support services for hassle free data storage.

Related Questions and Answers

Q: 1. A knocking/beating/rocking noise is constantly happening when a file is transferring/saving. Is this 7200rpm WD hard drive defective? This hard drive is used with a Synology NAS enclosure. Other 5400rpm WD hard drives have been using with other NAS enclosures for years and never make any weird noise like this.

A: WD support can be contacted at the following location: https://www.westerndigital.com/support

Q: 2. What is the manufacturer part number of the two drives included in the box?

A: The Mfr part # of the individual drives is: WEBRJY0100HN

Q: 3. Does the OEM drive come with the same 5 year warranty that the retail kits come with from WD?

A: Yes, this drive comes with the same warranty as the retail kit. It carries a 5-Year Limited Warranty against defects from Western Digital.

Q: 4. Does the retail version include the screws for mounting it?

A: No, the WD 6TB Red Pro 7200 rpm SATA III 3.5" Internal NAS HDD (Retail) BH #WEBRJY0060HN does not include mounting screws. Those should be already either in your PC case or if using a NAS/RAID enclosure, they would be included with that.

Q: 5. I know and understand that Black hard drives are made for gaming computers which is what I have. But no matter what color the drive is or what it's made for will they all work with any desktop computer reliably?

A: The short answer is that yes, any of the different drives will work just fine. "NAS" rated drives ostensibly will be more resilient in the face of things like vibrations and running nonstop, but personally I'd focus more on the speed (5400 vs 7200rpm). In this case both the black and this one look to be 7200, so you're fine either way. BUT, if you're planning on using this as your primary drive (as opposed to storage) I'd very strongly suggest getting an SSD instead, where the speed and subsequent experience with things like booting up and really just everything, is vastly better.

Q: 6. Will they work in QNAP TR-004 4-Bay DAS?

A: Yes, the WD 10TB WD101EFBX Red Plus SATA III 3.5" Internal NAS HDD (CMR, Retail) is compatible with the QNAP TR-004 4-Bay USB 3.2 Gen 1 RAID Expansion Enclosure,

Q: 7. It is compatible with drobo ?

A: Yes it should work. Make sure that all drives are same model number if you are using them in a single array.

Q: 8. Is this WD 6T Red Pro NEW product from Factory or refurished / recertified ?

A: NEW from factory

Q: 9. Western digital

A: Yes it is a Western Digital drive.

Q: 10. Which drives are installed in WD My Cloud Mirror Gen 2, the Red or Red Pro?

A: They would be the standard WD red hard drives.