How come in the warranty section of the ad it says 2year warranty? THis is a 5 year warranty item

Hello Matthew Shaw, Thank you for contacting us in regards to your question. This particular product is being offered through a Newegg Marketplace Seller. For more information regarding the warranty, please contact them directly through their Seller Profile page. This is their contact information. https://www.newegg.com/PlatinumMicro-com/about Thank you, Newegg Support

is this OEM Drive or retail?

I am not 100% sure what the classification of the drive is but I have verified that It came new in WD brown box with an anti static bag and plastic molded supports on the side. I did talk to WD and NewEgg support as this drive said it did not come with a warranty on the WD support page. It turns out this drives serial number is inventoried through the HGST and not the WD system so the drives warranty information would need to be verified there. After learning this information I confirmed that the drive I received qualified for the 5 year warranty on the HGST site. I'm sure it's only a matter of time before the two companies merge resources and all warranty information will be verifiable on one platform. It is important to note that WD only warranties drives purchased through their authorized vendor list so purchasing from NewEgg as the direct seller should be enough to guarantee the warranty.

WD Elements 14TB USB 3.0 Desktop External Hard Drive WDBWLG0140HBK-NESN Black

(1,142)

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Western Digital Ultrastar 4TB DC HC310 7200 RPM SATA 6.0Gb/s 3.5" Data Center Internal Hard Drive - 0B35950

Used - Very Good

Options: 4TB

14TB
12TB
8TB
6TB
4TB

Designed with a workload rating up to 550TB per year, 10X desktop rating
Five generations of HelioSeal technology (10TB and above)
Rotational Vibration Safeguard (RVS) technology for vibration protection
Retail or OEM packing may vary

🔥Don't forget your OS, we have Windows 11 OEM, Download and USB versions available

Overview

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ULTRASTAR 7K6 3.5IN 26.1MM 4000GB 256MB 7200RPM SATA ULTRA

Model
Brand	WD
Series	Ultrastar DC HC310
Model	0B35950
Packaging	Bare Drive

Performance
Interface	SATA 6.0Gb/s
Capacity	4TB
RPM	7200 RPM
Cache	256MB
Average Latency	6Gb/s

Features
Features	High Workload Rating Delivering dependable performance to any storage environment, Ultrastar hard drives are designed with a workload rating up to 550TB per year, among the highest of any 3.5-inch hard drive. Enterprise-class Storage to Rely On Ultrastar is our top-end drive for data centers. With up to 2.5 million hours MTBF, Ultrastar hard drives deliver reliability and durability, are built for yearly operation (24x7x365) within the most demanding storage environments. HelioSeal Technology Featured in over 30 million Western Digital hard drives shipped, HelioSeal technology allows for higher capacities and lower power on large storage arrays. And now on its 5th generation design, HelioSeal technology is field-tested and proven to deliver high capacity, reliability, and power efficiency you can trust. Vibration Protection Enhanced Rotational Vibration Safeguard (RVS) technology uses sophisticated electronics to monitor the drive and correct linear and rotational vibrations in real time for improved performance versus traditional desktop drives in high-vibration environments. Dynamic Fly-height Technology Each read-write head's fly height is adjusted in real time to ensure consistent performance for reduced errors and optimized reliability. Dual-stage Actuator Technology Ultrastar drives feature a dual-stage actuator head positioning system for a high degree of accuracy. The primary stage provides course displacement while the secondary stage uses piezoelectric motion to fine tune the head positioning to a higher degree of precision. Compatibility testing All Ultrastar hard drives are extensively tested across a variety of popular OEM storage systems, SATA controllers, and host bus adapters to ensure ease of integration for a plug and play solution. 7200 RPM-Class This family of 7200 RPM-class hard drives delivers the fastest performance with the highest workload rating of any drive in Western Digital's hard drive lineup.
Usage	For Enterprise Storage

Dimensions
Form Factor	3.5"
Height (maximum)	26.10mm
Width (maximum)	101.60mm
Length (maximum)	147.00mm

Additional Information
First Listed on Newegg	July 27, 2026

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Western Digital Ultrastar 4TB DC HC310 7200 RPM SATA 6.0Gb/s 3.5" Data Center Internal Hard Drive - 0B35950

Used - Very Good

Learn more about the Western Digital 0B35950

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info

Item#: 9SIAC3JM2T7793

Meet Your Seller

Sponsored Products

Western Digital Ultrastar 4TB DC HC310 7200 RPM SATA 6.0Gb/s 3.5" Data Center Internal Hard Drive - 0B35950

Used - Very Good

Learn more about the Western Digital 0B35950

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info