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Western Digital WD 16TB HDD Ultrastar DC HC550 SATA 7200RPM 3.5-Inch Enterprise Hard Drive - WUH721816ALE6L0 (Renewed)

  • Based on 280 reviews
Condition: Refurbished - Excellent
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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Dec 11
Order within 9 hours and 52 minutes
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Color: Silver


Features

  • Massive 16TB Capacity Store more data with fewer drives, reducing rack space and overall TCO in enterprise deployments.
  • Enterprise-Grade Reliability MTBF rated at 2.5M hours with a workload capability of 550TB/year, ensuring long-term durability under heavy workloads.
  • HelioSeal Technology Helium-filled design lowers turbulence, enabling higher density, cooler operation, and improved power efficiency.
  • Performance Optimized 7200 RPM speed, SATA 6Gb/s interface, and large cache ensure consistent throughput for demanding applications.
  • Advanced Recording Technology Energy-Assisted Magnetic Recording (EAMR) enhances areal density, delivering high capacity without sacrificing data integrity.

Description

Western Digital Ultrastar DC HC550 16TB (WUH721816ALE6L0) is a high-capacity enterprise hard drive engineered for data centers, cloud storage, and mission- critical workloads. Built with advanced energy-assisted magnetic recording (EAMR) technology and helium-sealed design, it delivers massive storage density, low power consumption, and exceptional reliability. With a 7200 RPM spindle speed, 512e sector format, and SATA 6Gb/s interface, this drive ensures consistent high performance for read-intensive and mixed workloads. Featuring a workload rating of up to 550TB per year and an MTBF of 2.5 million hours, it’s designed to meet the demands of hyperscale environments and enterprise-class storage arrays.

Digital Storage Capacity: 16000 GB


Hard Disk Interface: Serial ATA-600


Connectivity Technology: SATA


Brand: WD


Special Feature: Portable


Hard Disk Form Factor: 3.5 Inches


Hard Disk Description: Mechanical Hard Disk


Installation Type: Internal Hard Drive


Color: Silver


Hard Disk Size: 16 TB


Hard Drive: ‎16 TB Mechanical Hard Disk


Brand: ‎WD


Series: ‎WUH721816ALE6L4


Item model number: ‎WUH721816ALE6L4


Item Weight: ‎1.52 pounds


Product Dimensions: ‎5.79 x 4 x 1.03 inches


Item Dimensions LxWxH: ‎5.79 x 4 x 1.03 inches


Color: ‎Silver


Flash Memory Size: ‎16000


Hard Drive Interface: ‎Serial ATA-600


Hard Drive Rotational Speed: ‎7200.00


Manufacturer: ‎Western Digital


Language: ‎English


Is Discontinued By Manufacturer: ‎No


Date First Available: ‎October 6, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Dec 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews

    • Works - Its and HDD and lets you store data
Color: Silver
Okay, I love solid state drives and their boot time. But as you slowly build up years of data/kid pics/past jobs smaller SSDs don't cut it anymore. I started out with a 10GB HDD and thought it was the best. Total writable storage on this device is about 14.5 TB versus the marking but that's pretty standard. On Windows 10 if you install with the standard SATA cable you will have to initialize the device. So if it doesn't show up on startup after install you will need to go to the device manager (as I did) and actually initialize the drive. Look it up on your search engine of choice and should pop up. Not the fault of the device but overly complicated operating systems that seem to be the rage these days. So far moved about 4TB onto the drive to keep family movies and photos safe. No issues other than the OS compatibility as mentioned. 14.5TB - For me that's just crazy at the price even though it dates me a bit. ... show more
Reviewed in the United States on January 13, 2024 by Kohl
    • I’ve bought 9! Very happy.
Color: Silver
Title says it all. I’ve bought a bunch of these. Put them through smart testing and I ran unraid pre clear to read/write the whole drive. All of the WD passed the tests and have been fine in operation since. If it’s your first enterprise drive purchase, they are louder than most expect, but not bad. Smart data is reset in my experience during recert for WD and Seagate (but not Toshiba), so don’t think you got lucky with a new drive! Also, as a tip, enterprise drives, on the whole, should remain powered - unlike consumer drives which are more suited for power cycling regularly. Doesn’t mean you can’t, but generally you should focus on "sleep" and "spin down" instead of a full power cycle multiple times a day. Company wise, on other products I’ve had to make a warranty claim on one of their recert drives and it was super easy, they paid shipping, and I had my replacement -which passed testing- in less than 2 weeks. ... show more
Reviewed in the United States on April 27, 2024 by blackbird2150
    • Drive failed. lost 3 months of new data since last full backup.
Color: Silver
Worked for almost 2 years then just died. there goes 13gb of data I wont be getting back. Should have got a new one with warranty. I made a backup but its 3 months old. so lesson learned.
Reviewed in the United States on May 11, 2025 by DATABASE00
    • Just perfect for my needs...
Color: Silver
I bought these drives used to install in my Ubiquiti NAS storage system and they are working just fine. I saved at least $300 bucks with this decision.
Reviewed in the United States on February 20, 2025 by Xavier Lozano
    • still waitting for disk sector detection result
Color: Silver
I received these two hard drives yesterday. The hard drivers are air-buffered and wrapped in anti-static bags. After the power is connected, everything is normal. Check the SMART table of the hard drive. Both hard drivers show that the power-on time is 0, but shows have been reset. It is estimated that the refurbished hard disk has reset the SMART table information, and it is no way to know any information before refurbishing. At present, VICTORIA is being used for comprehensive sector scan and detection. If everything is normal, I will update the review, but if I find that the sector reading speed is more than 1 second, I will apply for a return. ... show more
Reviewed in the United States on June 24, 2023 by Peter
    • So far, so good!
Color: Silver
SMART status looks good, and it’s passed my series of burn-in tests. Been working well in a raid array for the last week
Reviewed in the United States on February 21, 2025 by Melby
    • Legit
Color: Silver
First thing I did was run a full format. No errors or blocks missing. I personally use this to store games and downloads mostly. Honestly It works great and even loading times in games I can't really notice a difference to my Gen4 nvme. My hardware is probably too high end for the drives to be a bottleneck. You can however, notice it's there. It's not the quietest thing in the world. But I actually found the sound kinda soothing. It only makes that sound when the drive is being written on at least for me. But I'm very satisfied with the product its the same as if I would have bought one new. It's so nice not caring about space and it's just one drive. For less than a 1tb Gen4 ssd. ... show more
Reviewed in the United States on November 27, 2023 by L.A
    • Shipping nightmare and very loud
Color: Silver
Drives work okay, as described. very loud and puts out a high pitch dog whistle sound. Beware about the shipping, dont expect to get them when described. Amazon still has no idea where they are, they think UPS has it, but no tracking updates on either side. Spent hours figuring out where my package was with no help from amazon and UPS clueless. Finally several days after the package should have arrived the seller replies to let me know it was with Fedex and that they were failing to deliver (at 10am on a weekday) because he required them to have a signature ??? for delivery. I never would have ordered if that was listed in the shipping info, which it was not. Such a hassle and waste of time. I ended up having to drive 2 hours round trip after work to the fedex distribution center to rescue my order now 3 days late. BEWARE BEWARE BEWARE ... show more
Reviewed in the United States on April 10, 2025 by Aaron

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