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Designed for quality and reliability - with a field-tested 1. 2 million hour mtbf, this high performance drive delivers the highest level of reliability for 24x7 operation in up to 100% duty cycle applications.

Vibration protection technology for improved performance. Energy-assisted magnetic recording EAMR and triple-stage actuator TSA in 16TB capacities and above. Designed to handle workloads up to 550tb2 per year | 2workload rate is defined as the amount of user data transferred to or from the hard drive.




Enterprise class, high level of reliability with up to 2. 5 million hours MTBF. Factory refurbished, factory sealed, zero bad Sectors Backed by a 5-Year Warranty from Reseller, Worry Free 100% Full Refund.
1. Seagate
#ad
Seagate Constellation ES ST4000NM0033 4TB 7200RPM 128MB Cache SATA 6.0Gb/s 3.5inch Internal Enterprise Hard Drive OEM, w/3 Year Warranty Renewed
#adSeagate #ad - Capacity optimized Enterprise Hard Drive for Bulk-Data Applications. 4tb, 7200rpm, 128mb cache, sata iii 6.0gb/s - designed for 24/7/365 Heavy Duty. Works for any sata server, cCTV DVR, nas, pc/mac, raid, Surveillance System.More information #ad
Best-in-class rotational vibration tolerance ensures consistent performance. 3 year warranty from reseller, Worry free Return! 100% Full Refund.Brand | Seagate #ad |
Manufacturer | SEAGATE #ad |
Height | 1 Inches |
Length | 5.8 Inches |
Width | 4 Inches |
Part Number | NA |
Model | NA |
Warranty | 90 days limited warranty |
More information #ad
2. Seagate
#ad
Seagate Exos 4TB Internal Hard Drive Enterprise HDD – 3.5 Inch 6Gb/s 7200 RPM 128MB Cache for Enterprise, Data Center – Frustration Free Packaging ST4000NM0035
#adSeagate #ad - Reduce tco with customizable power options. Tackle heavy applications 24x7 with high performance. Advanced write caching coupled with TurboBoost provides better performance and minimizes the risk of losing data due to unexpected power loss. Support 4tb of data with an easy-to-integrate SATA HDD.More information #ad
Brand | Seagate #ad |
Manufacturer | Seagate Bare Drives #ad |
Height | 1.03 Inches |
Length | 5.79 Inches |
Weight | 1.72 Pounds |
Width | 4.01 Inches |
Part Number | ST4000NMZ035 |
Model | ST4000NM0035 |
Warranty | 5 years limited |
More information #ad
3. MDD MAXDIGITALDATA
#ad
HGST Ultrastar HUS724040ALE641 4TB 7200RPM 64MB Cache SATA 6Gb/s 3.5-inch Enterprise Hard Drive for NAS, Desktop PC, 5 Year Warranty Renewed, MDD, Surveillance Storage
#adMDD MAXDIGITALDATA #ad - 5 years warranty from reseller, Worry Free Return! 100% Full Refund. Passed factory diagnostic software + re-certified by state-of-the-art mdd testing software - full "Sector-by-Sector" test to ensure best HDD quality! ZERO Bad Sectors! Bare drive only, single pack, no screws, cables or accessories included -Friendly Reminder- Please FORMAT HDD on system in order to be detected/shows on system.4
More information #ad
4tb capacity, sata iii 6. 0gb/s, 7200rpm rotation speed, enterprise grade, 64mb cache, 3.5" internal hard drive, Heavy Duty, SATA III 6. 0gb/s, designed for 24/7 reliable operation. Works for pc, mac, cctv dvr, NAS, raid, Surveillance Storage.Brand | MDD MAXDIGITALDATA #ad |
Manufacturer | MDD MAXDIGITALDATA #ad |
Height | 1 Inches |
Length | 5.8 Inches |
Width | 4 Inches |
Part Number | HUS724040ALE641-MDD |
Model | HUS724040ALE641-MDD |
Warranty | 5 Year Warranty from Reseller |
More information #ad
4. Western Digital
#ad
WD 4TB 3.5 Inch SATA III, 64 MB Cache Enterprise Hard Drive WD4000FYYZ Renewed, 7200 RPM
#adWestern Digital #ad - Industry's highest capacity nearline drive - wd RE SATA hard drives are available in capacities ranging from 2 TB to 4 TB to suit even the most demanding storage needs.Designed for quality and reliability - with a field-tested 1. 2 million hour mtbf, this high performance drive delivers the highest level of reliability for 24x7 operation in up to 100% duty cycle applications.
More information #ad
Highest performance for business-critical applications - WD RE delivers 6 Gb/s transfer rates, sustained sequential data rates of 171 MB/s and high random I/O rates. Dual processor - Twice the processing power to maximize performance.Brand | Western Digital #ad |
Manufacturer | Western Digital #ad |
Height | 5.79 Inches |
Length | 4 Inches |
Width | 1.03 Inches |
Part Number | 4348277502 |
Model | 4348277502 |
Warranty | 90 days limited warranty |
More information #ad
5. Western Digital
#ad
WD4003FRYZ, SATA 6 Gb/s, 256 MB Cache, Western Digital 4TB WD Gold Enterprise Class Internal Hard Drive, 7200 RPM Class, 3.5"
#adWestern Digital #ad - Actual user capacity may be less depending on operating environment. Workload rate will vary depending on your hardware and software components and configurations.Vibration protection technology for improved performance. Energy-assisted magnetic recording EAMR and triple-stage actuator TSA in 16TB capacities and above. Designed to handle workloads up to 550tb2 per year | 2workload rate is defined as the amount of user data transferred to or from the hard drive.
More information #ad
1as used for storage capacity, 1GB = 1 billion bytes and 1TB = one trillion bytes. Workload rate is annualized TB transferred X 8760 / recorded power-on hours. Available in 1tb to 20tb capacities. Helioseal technology delivers high capacities with a low power draw 12TB and above.Brand | Western Digital #ad |
Manufacturer | Western Digital #ad |
Height | 1.03 inches |
Length | 5.79 inches |
Weight | 1.5 Pounds |
Width | 4 inches |
Part Number | WD4003FRYZ |
Model | WD4003FRYZ |
Warranty | 5 years |
More information #ad
6. Seagate
#ad
Seagate Exos 7E8 4TB 512n SATA 128MB Cache 3.5-Inch Enterprise Hard Drive ST4000NM0035
#adSeagate #ad - High reliability drive for servers, storage systems, and business centric NAS systems. Seagate enterprise drives are built on 40 years of enterprise workload knowledge and experience.More information #ad
Designed for 24×7 storage environments and backed by a 2 million hour MTBF rating. Performance optimized for heavy application usage, supports workloads of up to 550TB per year 10× that of desktop hard drives.Brand | Seagate #ad |
Manufacturer | Seagate Bare Drives #ad |
Height | 1.03 Inches |
Length | 5.79 Inches |
Weight | 1.72 Pounds |
Width | 4.01 Inches |
Part Number | ST4000NM0035 |
Model | ST4000NM0035 |
Warranty | 5 years limited |
More information #ad
7. Western Digital
#ad
WD4002FYYZ, 7200 RPM Class SATA 6 Gb/s 128MB Cache 3.5 Inch, WD Gold 4TB Enterprise Class Hard Disk Drive
#adWestern Digital #ad - Compatibility : windows, Linux, Windows Server, and Mac OS. High level of reliability with up to 2. 5 million hours MTBF. Designed for 24x7x365 reliability at workloads up to 550TB per year.More information #ad
Raid-specific time-limited error recovery TLER. Performance-optimized for heavy application workloads. Compatibility: windows, Windows Server, Linux, and Mac OS.Brand | Western Digital #ad |
Manufacturer | Western Digital Bare Drives #ad |
Height | 1.03 Inches |
Length | 5.79 Inches |
Weight | 1.58 Pounds |
Width | 4 Inches |
Part Number | WD4002FYYZ |
Model | WD4002FYYZ |
Warranty | 5 years |
More information #ad
8. Seagate
#ad
256MB Cache ST4000NM004C, Seagate Enterprise 4TB Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM
#adSeagate #ad - Reduce tco with customizable power options. Advanced write caching minimizes the risk of losing data due to unexpected power loss. Tackle heavy applications 24x7 with high performance. Support 4tb of data with an easy-to-integrate SATA HDD.More information #ad
Brand | Seagate #ad |
Manufacturer | SEAGATE #ad |
Part Number | ST4000NM004C |
Model | ST4000NM004C |
Warranty | 5-year limited manufacturer warranty |
More information #ad
9. Western Digital
#ad
7200 RPM Class SATA 6 Gb/s 128MB Cache 3.5 Inch, WD4002FYYZ Renewed, WD Gold 4TB Enterprise Class Hard Disk Drive
#adWestern Digital #ad - Works for server, nas network storage, cctv dvr, raid system, surveillance storage, Designed for 24x7x365 reliability at workloads up to 550TB per year.Enterprise class, high level of reliability with up to 2. 5 million hours MTBF. Factory refurbished, factory sealed, zero bad Sectors Backed by a 5-Year Warranty from Reseller, Worry Free 100% Full Refund.
More information #ad
Bare drive only, single pack, screws, brown box, cables or Accessories sold separately -Friendly Reminder- Please FORMAT HDD on system in order to be detected/shows on system.4tb hard drive, 7200rpm, 128mb cache, sata 6.0gb/s enterprise Class Hard Drive.Brand | Western Digital #ad |
Manufacturer | Western Digital Bare Drives #ad |
Height | 1 Inches |
Length | 5.8 Inches |
Width | 4 Inches |
Part Number | WD4002FYYZ-NOS-5YR-cr |
Model | WD4002FYYZ-cr |
Warranty | 90 days limited warranty |
More information #ad