Top 9 Western Digital Red Hard Drive 4TB – Internal Hard Drives

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1. Western Digital

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5400 RPM, 3.5" -WD40EFZX, CMR, SATA 6 Gb/s, 128 MB Cache, Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD

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Western Digital #ad - Small or medium business NAS systems in a 24x7 environment. Available in capacities ranging from 1-14TB with support for up to 8 bays. Nasware firmware for compatibility. Workload rate will vary depending on your hardware and software components and configurations. 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.
BrandWestern Digital #ad
ManufacturerWestern Digital Technologies, Inc. #ad
Height1.03 Inches
Length5.79 Inches
Weight1.32 Pounds
Width4 Inches
Part NumberWD40EFZX
ModelWD40EFZX
Warranty3 year limited warranty

2. Western Digital

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

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Western Digital #ad - Nasware firmware for compatibility. Nas systems with daily workloads associated with personal and home office environments and idle time available to perform necessary background operations. Workload rate is annualized TB transferred 8760 / recorded power-on hours. 3-year limited warranty. 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. 5400rpm performance class. Available in capacities ranging from 2-6TB with support for up to 8 bays.
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. Western Digital

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

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Western Digital #ad - Workload rate is annualized TB transferred 8760 / recorded power-on hours. Available in capacities ranging from 2-14TB with support for up to 24 bays. 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. 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.

4. Western Digital

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USB 2.0 Compatible, WD 4TB My Passport Portable External Hard Drive HDD, Red, WDBPKJ0040BRD-WESN, USB 3.0

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Western Digital #ad - Password protection plus 256-bit AES hardware encryption. Slim design. Wd discovery software for WD Backup, password protection, and drive management. Superspeed usb-a 3. 0 5gpbs, 2. 0 compatible. Automatic backup - easy to use.
BrandWestern Digital #ad
ManufacturerWD #ad
Height0.75 Inches
Length4.22 Inches
Weight0.46 Pounds
Width2.95 Inches
Part NumberWDBPKJ0040BRD-WESN
ModelWDBPKJ0040BRD-WESN
Warranty3-year manufacturer's limited warranty

5. Western Digital

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5400 RPM, CMR, 512 MB Cache, SATA 6 Gb/s, WD140EFFX, Western Digital 14TB WD Red Plus NAS Internal Hard Drive HDD, 3.5"

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Western Digital #ad - Nasware firmware for compatibility. 5400rpm performance class. 3-year limited warranty. During this transition period, wd red plus devices may be delivered with a ”WD Red” label, but rest assured the device you are receiving will be the CMR-version of WD Red and can be confirmed by the model number.

Available in capacities ranging from 1-14TB with support for up to 8 bays. This model uses cmr technology and is being renamed “WD Red Plus” to distinguish it from the current “WD Red” product, which uses SMR technology. Workload rate is annualized TB transferred 8760 / recorded power-on hours. Small or medium business NAS systems in a 24x7 environment. 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.
BrandWestern Digital #ad
ManufacturerWestern Digital #ad
Height4 Inches
Length1.03 Inches
Weight0.11 Pounds
Width5.79 Inches
Part NumberWD140EFFX
ModelWD140EFFX
Warranty3-year manufacturer's limited warranty

6. Western Digital

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USB 3.0, Western DigitalBYFT0040BRD-WESN, Western Digital 4TB Red My Passport Portable External Hard Drive

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Western Digital #ad - System compatibility: windows 10, windows 8. 1, windows 7. Auto backup with included WD Backup software. Requires reformatting for Mac OS X operating system. 3-year manufacturer's limited warranty. Trusted drive built with WD reliability. Password protection with hardware encryption. Usb 3. 0 port; usb 2. 0 compatible.
BrandWestern Digital #ad
ManufacturerWestern Digital #ad
Height0.85 Inches
Length4.33 Inches
Weight0.54 Pounds
Width3.21 Inches
Part NumberWDBYFT0040BRD-WESN
ModelWDBYFT0040BRD-WESN
Warranty2-year limited warranty

7. Western Digital

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CMR, Western Digital 10TB WD Red NAS Internal Hard Drive, 5400 RPM Class, SATA 6 Gb/s, 3.5", WD100EFAX Old Version, 256 MB Cache

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Western Digital #ad - Nasware firmware for Compatibility. 3 year manufacturer's limited warranty. Small and home office NAS systems in a 24/7 environment. Specifically designed for use in NAS systems with up to 8 bays. Suppots 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 times 8760 / recorded Power on hours; Workload Rate will vary depending on Your hardware and Software components and configurations.
BrandWestern Digital #ad
ManufacturerWestern Digital Bare Drives #ad
Height1.03 Inches
Length5.79 Inches
Weight1.43 Pounds
Width4 Inches
Part NumberWD100EFAX
ModelWD100EFAX
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.

8. Western Digital

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Western Digital Red Pro 4TB 3.5-Inch 7200rpm 64MB Cache NAS Hard Drive WD4002FFWX Renewed

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Western Digital #ad - Package includes a hard drive only - no screws, cables, manuals included. Please purchase mounting hardware and cables separately if necessary. Vibration & Shock protection. Enhanced reliability with 3D Active Balance Plus and error recovery controls with NASware 3. 0 Extended drive testing to ensure each drive is tested for extended reliable operation. Ships in wd-certified box for safe transit during shipping. Available in large capacities with support for 1-16 bays.
BrandWestern Digital #ad
ManufacturerWestern Digital Bare Drives #ad
Height1.03 Inches
Length5.79 Inches
Width4 Inches
Part NumberNA
ModelNA
Warranty90 days limited warranty

9. WD_BLACK

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

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WD_BLACK #ad - 2x dram cache up to 256 MB for faster read operations. Desktop performance hard drive. Performance storage available in up to 10TB capacities. Designed for creative professionals, gamers and system builders.
BrandWD_BLACK #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.