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1. Seagate

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Seagate IronWolf 4TB NAS Internal Hard Drive HDD – CMR 3.5 Inch SATA 6Gb/s 5900 RPM 64MB Cache for RAID Network Attached Storage – Frustration Free Packaging ST4000VN008

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Seagate #ad - Store more and work faster with a NAS optimized hard drive providing 4TB and cache of up to 64MB. Ironwolf internal hard drives are the ideal solution for up to 8 bay, multi user NAS environments craving powerhouse performance.

Five-year limited product warranty protection plan and three year Rescue Data Recovery Services included. Purpose built for nas enclosures, increased file sharing performance, ironwolf delivers less wear and tear, little to no noise/vibration, no lags or down time, and much more. Easily monitor the health of drives using the integrated IronWolf Health Management system and enjoy long term reliability with 1M hours MTBF.
BrandSeagate #ad
ManufacturerSeagate Bare Drives #ad
Height1.03 Inches
Length5.79 Inches
Weight1.35 Pounds
Width4.01 Inches
Part NumberST4000VNZ008
ModelST4000VNZ08
Warranty3-year limited

2. Western Digital

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Western Digital 4TB WD Red NAS Internal Hard Drive HDD, 5400 RPM, 3.5", WD40EFAX, 256MB Cache, SMR, SATA 6 Gb/s

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Western Digital #ad - Available in capacities ranging from 2-6TB with support for up to 8 bays. Nasware firmware for compatibility. 5400rpm performance class. Supports up to 180 tb/yr workload rate* | * workload rate is defined as the amount of user data transferred to or from the hard drive. Workload rate is annualized TB transferred 8760 / recorded power-on hours. Nas systems with daily workloads associated with personal and home office environments and idle time available to perform necessary background operations. 3-year limited warranty.
BrandWestern Digital #ad
ManufacturerWestern Digital #ad
Height4 Inches
Length1.03 Inches
Weight1.2 Pounds
Width5.79 Inches
Part NumberWD40EFAX
ModelWD40EFAX
Warranty3-year manufacturer's limited warranty

3. Toshiba

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HDWQ140XZSTA, CMR SATA 6 GB/s 7200 RPM 128 MB Cache, Toshiba N300 4TB NAS 3.5-Inch Internal Hard Drive

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Toshiba #ad - Integrated RV sensors to compensate for rotational vibrations. High performance 7200 RPM drive with large cache size. Built for small office and home office NAS. Designed for 24/7 operation9. High reliability with up to 180TB/year workload rating6. Includes toshiba 3 year limited warranty10 .
BrandToshiba #ad
ManufacturerToshiba America Electronic Components Inc #ad
Height1.03 Inches
Length5.79 Inches
Weight1.59 Pounds
Width4 Inches
Part NumberHDWQ140XZSTA
ModelHDWQ140XZSTA
Warranty3 years

4. Western Digital

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7200 RPM, 3.5", WD4003FFBX, SATA 6 Gb/s, 256 MB Cache, CMR, Western Digital 4TB WD Red Pro NAS Internal Hard Drive HDD

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Western Digital #ad - Enhanced reliability with 3d Active Balance Plus technology and error recovery controls with NASware 3. 0 technology. 5-year limited warranty. Supports up to 300 tb/yr workload rate* | * workload rate is defined as the amount of user data transferred to or from the hard drive. 7200rpm performance class. Available in capacities ranging from 2-14TB with support for up to 24 bays. Workload rate is annualized TB transferred 8760 / recorded power-on hours. Extended drive testing to ensure each drive is tested for extended reliable operation.
BrandWestern Digital #ad
ManufacturerWestern Digital #ad
Height1.03 Inches
Length5.79 Inches
Weight1.58 Pounds
Width4 Inches
Part NumberWD4003FFBX
ModelWD4003FFBX
WarrantyWestern Digital ("WD") values your business and always attempts to provide you the very best of service.No limited warranty is provided by WD unless your WD Product ("Product") was purchased from an authorizeddistributor or authorized reseller. Distributors may sell Products to resellers who then sell Products to end users.Please see below for warranty information or obtaining service. No warranty service is provided unless the Productis returned to an authorized return center in the region (warranty regions are identified as Canada, U.S.A., LatinAmerica, Europe, Middle East, Africa, Asia Pacific, India and Thailand) where the Product was first shipped by WD,which may have regional specific warranty implications.If your Product was purchased as a component integrated within a system by a system manufacturer, no limitedwarranty is provided by WD.

5. Seagate

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Seagate Skyhawk 4TB Surveillance Internal Hard Drive HDD – 3.5 Inch SATA 6GB/s 64MB Cache for DVR NVR Security Camera System with Drive Health Management – Frustration Free Packaging ST4000VX007

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Seagate #ad - Rotational vibration rv sensors help maintain performance in RAID and multi-drive systems 4TB or higher. 3 year limited Manufacturer Warranty. Custom-built for surveillance applications with Image Perfect firmware for crisp, clear, 24×7 video workloads. Up to 10tb of capacity to store up to 10, 000 hours of HD video. Maximum 180tb/year workload rating—3× the workload rating of desktop drives—for reliable performance in write-intensive surveillance systems.
BrandSeagate #ad
ManufacturerSeagate Bare Drives #ad
Height1.03 Inches
Length5.79 Inches
Weight1.43 Pounds
Width4.01 Inches
Part NumberST4000VXZ07
ModelST4000VXZ07/VX007
Warranty3-year limited

6. Western Digital

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3.5", 7200 RPM, SATA 6 Gb/s, WD4005FZBX, 256 MB Cache, Western Digital 4TB WD Black Performance Internal Hard Drive HDD

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Western Digital #ad - Designed for creative professionals, gamers and system builders. 5-year manufacturer's limited warranty. Desktop performance hard drive. 2x dram cache up to 256 MB for faster read operations. Performance storage available in up to 10TB capacities.
BrandWestern Digital #ad
ManufacturerWestern Digital #ad
Height1.03 Inches
Length5.79 Inches
Weight1.66 Pounds
Width4 Inches
Part NumberWD4005FZBX
ModelWD4005FZBX
WarrantyWestern Digital ("WD") values your business and always attempts to provide you the very best of service. No limited warranty is provided by WD unless your WD Product ("Product") was purchased from an authorized distributor or authorized reseller. Distributors may sell Products to resellers who then sell Products to end users. Please see below for warranty information or obtaining service. No warranty service is provided unless the Product is returned to an authorized return center in the region (warranty regions are identified as Canada, U.S.A., Latin America, Europe, Middle East, Africa, Asia Pacific, India and Thailand) where the Product was first shipped by WD, which may have regional specific warranty implications. If your Product was purchased as a component integrated within a system by a system manufacturer, no limited warranty is provided by WD.

7. Seagate

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128 MB Buffer Renewed, 7200 rpm, SATA, Seagate ST4000NM0033 Constellation ES.3 4 TB 3.5 inch Internal Hard Drive

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Seagate #ad - Capacity optimized enterprise Hard Drive for Bulk-Data Applications, Best-in-class rotational vibration tolerance ensures consistent performance. 3 year warranty from reseller, Worry free Return! 100% Full Refund. Works for any sata server, raID, nas, PC/Mac, cctv dvr, Surveillance System.4tb, 7200rpm, 128mb cache, sata iii 6.0gb/s - designed for 24/7/365 Heavy Duty. 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.
BrandSeagate #ad
ManufacturerSeagate Technology #ad
Part NumberNA
ModelNA
Warranty90 days limited warranty

8. Toshiba

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5 Year Warranty, Toshiba MG04ACA400N 4TB 64MB Cache 7200RPM SATA III 6.0Gb/s 3.5" Internal Enterprise NAS Hard Drive

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Toshiba #ad - 4 tb of storage capacity, 7200 rpm, SATA III 6. 0 gbit/s. Works for servers raid system, network attached storage nas, digital video Recorders DVR Network Video Recorders NVR, Video Editing Systems Set-Top-Box STB, PC Backup Storage Hard Drive. 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.5 years warranty from Reseller. 3. 5-inch, form factor, Enterprise Grade Heavy Duty.
BrandToshiba #ad
ManufacturerToshiba #ad
Height5.79 Inches
Length4.01 Inches
Weight1.59 Pounds
Width1.03 Inches
Part NumberMG04ACA400N
ModelMG04ACA400N
Warranty5 Years Warranty from Reseller

9. White Label

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WL 4TB 7200RPM 64MB Cache SATA 6.0Gb/s Enterprise Grade 3.5" Hard Drive for Server, Desktop PC w/1 Year Warranty, NAS, RAID, DVR

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White Label #ad - 1 year warranty from Reseller. Highest performance for business-critical applications - delivers 6 Gb/s transfer rates, sustained sequential data rates of 171 MB/s and high random I/O rates.

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. Industry's highest capacity nearline drive - SATA III 6. 0gbs enterprise hard drives are available in capacities 4TB to suit even the most demanding storage needs. Dual processor - twice the processing power to maximize performance Vibration Protection - Enhanced RAFF technology includes sophisticated electronics to monitor the drive and correct both linear and rotational vibration in real time.
BrandWhite Label #ad
ManufacturerWhite Label #ad
Weight1 Pounds
Part NumberWL4000GSA6472E
ModelWL4000GSA6472E

10. Seagate

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Silver, Personal Cloud Storage ST4000VN008, Seagate 4TB IronWolf NAS SATA Hard Drive 6Gb/s 256MB Cache 3.5-Inch Internal Hard Drive for NAS Servers

#ad
Seagate #ad - Ironwolf internal hard drives are the ideal solution for up to 8-Bay, multi-user NAS environments craving powerhouse performance. Operating system: PC.

Purpose built for nas enclosures, no lags or down time, little to no noise/vibration, increased file-sharing performance, IronWolf delivers less wear and tear, and much more. Three-year limited warranty protection plan included. Easily monitor the health of drives using the integrated IronWolf health management system and enjoy long-term reliability with 1M hours MTBF. System ram type: ddr4_sdram. Store more and work faster with a nas-optimized hard drive providing 4Tb and Cache of up to 64MB.
BrandSeagate #ad
ManufacturerSEAGATE #ad
Height1.03 Inches
Length5.78 Inches
Weight1.34 Pounds
Width4 Inches
Part NumberST4000VN008
ModelST4000VN008