Ultrastar DC HC550
Western Digital Ultrastar DC HC550 18TB 3.5" 7200 RPM SATA
18TB · 7,200 RPM · 512 MB · SATA
$400
1 store
CC $400 · NE $648 · WDS $975
Western Digital WD Red Pro 18TB 3.5" 7200 RPM SATA
MPN WD181KFGX UPC 718037875729
- Capacity
- 18TB
- Speed
- 7,200 RPM
- Cache
- 512 MB
- Interface
- SATA
- Form factor
- 3.5"
- Recording
- CMR
Best price now
$794.99
at
Near you
In stock at 32 stores nationwide.
Where to buy
In-store stock · 32 stores
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Specifications
Drive
- Capacity
- 18TB
- Form factor
- 3.5"
- Interface
- SATA
- Speed
- 7,200 RPM
- Cache
- 512 MB
- Recording
- CMR
Use & reliability
- Made for
- Enterprise
- Workload
- 550 TB/year
- Warranty
- 5 years
Wrong price, stock or spec? Tell us
Full spec sheet from Newegg
- Model/Brand
- WD
- Model/Model
- WD181KFGX
- Model/Series
- Red Pro
- Features/Usage
- Enterprise NAS Hard Drives
- Performance/RPM
- 7200 RPM
- Features/Features
- 3D Active Balance Plus Our enhanced dual-plane balance control technology significantly improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system, reduce the hard drive life span, and degrade the performance over time. Error Recovery Prevention Built specifically for RAID and NAS environments, WD Red Pro drives come equipped with error recovery controls as part of NASware 3.0 technology to help reduce drive fallout in RAID applications. Extended Drive Testing A NAS environment that has up to 24 bays is very demanding on a hard drive with added vibration and heat. This is why every WD Red Pro drive is shipped with extended thermal cycle burn-in testing to help ensure each drive is tested for extended reliable operation. Desktop drives vs. WD Red Pro Do right by your NAS and choose the drive purpose-built for NAS with an array of features to help preserve your data and maintain optimum performance. Take the following into consideration when choosing a hard drive for your NAS: - Compatibility: Unlike desktop drives, these drives are specifically tested for compatibility with NAS systems for optimum performance. - Reliability: The always-on environment of a NAS or RAID is a hot one, and desktop drives aren't typically designed and tested under those conditions like WD Red Pro drives are. - Error Recovery Controls: WD Red Pro NAS hard drives are specifically designed with RAID error recovery control to help reduce failures within the NAS system. - Noise and Vibration Protection: Designed to operate solo, desktop drives typically offer little or no protection from the noise and vibration present in a multi-drive system. WD Red Pro drives are designed to thrive in multi-bay NAS system environments.
- Performance/Cache
- 512MB
- Performance/Capacity
- 18TB
- Performance/Interface
- SATA 6.0Gb/s
- Dimensions/Form Factor
- 3.5"
- Dimensions/Width (maximum)
- 101.60mm
- Dimensions/Height (maximum)
- 26.10mm
- Dimensions/Length (maximum)
- 147.00mm
- Performance/Recording Technology
- CMR
- Performance/NAND Flash Memory Type
- Hard Drive
- Additional Information/First Listed on Newegg
- December 17, 2020
Full spec sheet from Bestbuy
- UPC
- 718037875729
- Brand
- WD
- Usage
- Network Attached Storage (NAS)
- Heatsink
- false
- Form Factor
- 3.5 in.
- Interface(s)
- SATA
- Model Number
- WD181KFGX
- Product Name
- Red Pro 18TB NAS Internal Hard Drive
- Lighting Type
- None
- Product Width
- 4 inches
- Product Height
- 1.028 inches
- Product Weight
- 24.32 ounces
- Data Encryption
- false
- Rotational Speed
- 7200 revolutions per minute
- Storage Capacity
- 18000 gigabytes
- Warranty - Labor
- 5 years
- Warranty - Parts
- 5 years
- Cache Buffer Size
- 512 megabytes
- Maximum Read Speed
- 272 megabytes per second
- Storage Drive Type
- HDD
- Maximum Write Speed
- 272 megabytes per second
- Internal Or External
- Internal
- Product Compatibility
- Network Attached Storage (NAS), Desktop computers
- Minimum System Requirements
- Specifically designed for use in NAS systems with up to 8 bays
Full spec sheet from Wdstore
- RPM
- 7200 RPM
- Cache
- 512 MB
- Parts
- 5-Year Limited Warranty
- Usage
- NAS PRO (1-24 Bay)
- Capacity
- 18 TB
- Interface
- SATA
- Store/EAN
- 718037875729
- Store/UPC
- 718037875729
- Form Factor
- 3.5-Inch
- Store/Color
- Red
- Store/Width
- 101.6 mm
- Store/Height
- 26.1 mm
- Store/Length
- 147 mm
- Store/Weight
- 690 gms
- Workload Rate
- 550TB/year
- Store/Connector
- SATA
- Store/Interface
- SATA
- Store/Cache Size
- 512 MB
- Store/Application
- NAS PRO (1-24 Bay)
- Store/Form Factor
- 3.5-Inch
- Store/Model Number
- WD181KFGX
- Store/Transfer Rate
- up to 272 MB/s
- Store/compatibility
- <p>RAID-optimized NAS systems with unlimited # of bays</p>
- Recording Technology
- CMR
- Store/Certifications
- BSMI, ICES-003/NMB-003, CE, FCC, KC, Maghreb, RCM, UKCA, VCCI, CB-Scheme, TUV, UL
- Store/ROHS Complaint
- true
- Store/Endurance (TBW)
- 550TB/year
- Store/Disk Speed (RPM)
- 7200 RPM
- Store/Performance Class
- 7200rpm
- Store/Recording Technology
- CMR
- Store/Operating Temperature
- 0, 65 °C
- Store/Retail box weight (max)
- 7.5 lbs
- Store/Non-Operating Temperature
- -40, 70 °C
Full spec sheet from Microcenter
- RPM
- 7,200 RPM
- SKU
- 621375
- UPC
- 718037875729
- Type
- Network Attached Storage (NAS)
- Cache
- 512MB
- Labor
- 5 Year Limited
- Parts
- 5 Year Limited
- Capacity
- 18TB
- Interface
- SATA 3.0 6.0Gb/s
- Mfr Part#
- WD181KFGX
- Packaging
- Retail
- Form Factor
- 3.5"
- Shock - Operating
- 30G 2ms (Write); 50G 2ms (Read)
- Power Usage - Idle
- 3.6 Watts
- Power Usage - Standby
- 0.9 Watts
- Shock - Non-Operating
- 250G, 2ms
- Interface Transfer Rate
- Up to 272MB/s
- Power Usage - Read/Write
- 6.1 Watts
- Temperature - Operating (°C)
- 32 to 149F (0 to 65C)
- Temperature - Non-Operating (°C)
- -40 to 158F (-40 to 70C)
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