Designed for use in RAID or NAS arrays with 1 to 8 drive bays, the Toshiba 4TB N300 7200rpm SATA III NAS HDD 2-Packfrom Toshiba 4TB N300 7200rpm SATA III NAS HDD 2-Packmeets the reliability, performance, endurance, and scalability requirements of 24/7 NAS applications for personal, home office, and small business use. This 4TB drive operates using a SATA III 6 Gb/s interface, a 512MB cache, and a rotational speed of 7200 rpm, all of which help to ensure uninterrupted data transfers with a rate of up to 281 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 up to 180TB per year, and a 1 million hour MTTF. Shock protection is provided by a rotational vibration sensor, while ramp loading helps reduce wear and Error Recovery Control limits recovery time to help optimize error correction.

4TB Storage Capacity per Drive    3.5" Form Factor    SATA III 6 Gb/s Interface    512MB Cache    7200 rpm Rotational Speed    Up to 281 MB/s Data Transfer Speeds    24/7 Operation    Supports Arrays with 1 to 8 Drive Bays    1 Million Hour MTTF    Workload Rate up to 180TB per Year

• 1 to 8-bay NAS arrays
• Desktop RAID arrays and servers
• Multimedia server storage

• Supports multi-RAID systems with up to 8 bays
• Designed for 24/7 operations with a workload rate of up to 180TB per year

• Integrated RV sensors help ensure high reliability against shock and vibrations by detecting and minimizing rotational vibration effects in multi-bay NAS systems

• On-board cache algorithm and buffer management optimize cache allocation between read and write cycles for improved real-time drive performance

• A 512MB data buffer ensures high performance and fast read speed during data intensive operation
• Fast data transfer speeds of up to 281 MB/s provides quick access to essential content

• Ramp loading technology reduces wear to the recording head and media for improved drive reliability
• Error Recovery Control technology limits recovery time to help optimize error correction in RAID environments

• The drive automatically adjusts the seek speed when it reaches a critical temperature to help reduce heat buildup during high temperature operations

• High reliability with an MTTF of up to 1 million hours
• Limited 3-year warranty

Related Questions and Answers

Q: 1. So is this a WD100EFAX drive in the box or something else? WDBMMA0100HNC-WRSN isn't listed anywhere I can find!

A: I ordered on a few days ago for my NAS and received the WD101EFAX (air filled). I was hoping for the WD100EFAX (helium filled) because I have four of those already in my RAID array and four empty slots and I wanted them all to match. I guess it doesn't matter. From what I can tell, the only real difference is it runs a few degrees hotter due to the air filled design instead of helium. WD100EFAX 36C/97F vs WD101EFAX 41C/106F.

Q: 2. What is the spin rate (RPM?)

A: This is a 5400RPM HDD.

Q: 3. 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: 4. What is the performance increase (read and/or write) between Western Digital Red Pro and WD Gold/Ultrastar?

A: Speed is nearly the same. The Ultrastars are Enterprise grade drives with higher MTBF ratings and designed for sustained 24/7 uptime.

Q: 5. Is the 12TB N300 or a N300 (non pro for that matter) a CMR drive?

A: The Toshiba 12TB N300 7200 rpm SATA III 3.5" Internal NAS HDD is a CMR Drive.

Q: 6. 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: 7. Will this drive replace Toshiba 8tb md06ACA800v sata for pegasus?

A: Yes, the Toshiba 8TB S300 Surveillance SATA III 3.5" Internal Hard Drive can be used in a Pegasus RAID array.

Q: 8. Plan to add as backup in a standard desktop case. Perhaps RAID1. Are these red drives appropriate? Wondering if I shouldn't just get a single WD enterprise drive (WD4000FYYZ)

A: This drive is rated very well for NAS devices, which is similar, if not identical, to running as a RAID pair in a desktop box. The drive is sufficient and recommended for that purpose.

Q: 9. The product model selection and display image show 256mb cache but the product description itself shows 64mb. I'm assuming the former is correct?

A: This product has 256MB of cache.

Q: 10. Does it work in the Synology DS1819+?

A: Yes, this would be compatible with DS1819+.