Stream, backup, share, and organize your digital content at home with a NAS and WD Red drives designed to share content to the devices in your home. Red NASware helps increase your drives' compatibility with your devices, TV, stereo, and more

WD Red is a good hard drive choice for 1 to 8 bay systems. NASware 3.0 allows for integration with your existing network so WD Red can share and backup files at the speed of your business. For larger businesses with up to 16 bays, use WD Red Pro

This helps ensure your data is protected from excessive vibration and noise in a NAS or RAID environment. This dual-plane balance control helps reduce the degradation of your drive over time

Since your NAS system is always on, a reliable drive is essential. With an MTBF of up to 1 million hours, the WD Red drive with NASware 3.0 is designed for 24x7 environments

By reducing power consumption, the operating temperature of your NAS stays cooler. With a lower temperature in your system, you can create a more reliable solution for your NAS

Related Questions and Answers

Q: 1. Does it work in the Synology DS1819+?

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

Q: 2. Will this work with Thunder3 RAID Station from AKiTiO ?

A: Yes, the WD 4TB Red B&H # WEWD40EFR is compatible with the Akitio Thunder3 Raid Station.

Q: 3. What is the spin rate (RPM?)

A: This is a 5400RPM HDD.

Q: 4. 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: 5. Can I use it with desktop as second HDD?

A: Yes you certainly can. However, I use them for data and not gaming. I prefer a black or raptor for gaming....or a spare SSD if you are flush.

Q: 6. Is this the CMR drive (WD40EFRX) in the box or the SMR drive (WD40EFAX) in the box? Review here says SMR drive but based on google search of the model number listed supposed to be the CMR drive. Thanks !!!

A: This drive is SMR. The Ultrastar line are all CMR. https://www.bhphotovideo.com/c/product/1463047-REG/wd_wdbbur0040bnc_wrsn_ultrastar_4tb_3_5_drive.html

Q: 7. Would the WD Red drive be suitable for DAS enclosure?

A: You can use these drives with a DAS but they are optimized for NAS enclosures.

Q: 8. 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: 9. What is Retail Kit ? I don't see any difference in spec's between the 4TB offered at $165.72 and the one that is marked retail Kit at $179.

A: Retail drives are drives that are distributed to retail stores and online dealers for sale to the general public. OEM drives are those sold to system manufacturers in large quantity, for inclusion in PCs built for resale: OEM stands for original equipment manufacturer and refers to a company that makes PCs (or other equipment). Retail kits include the drives, installation instructions, mounting hardware, interface cable, warranty card (this may vary from manufacturer to manufacturer and model to model). OEM drives include just the drive.

Q: 10. What is the difference between Red and Retail Kit?

A: Package is diff, HDD itself is the same. (Red in brown box, Retail in printed box)