Running out of space on your NAS can slow down backups and halt collaboration, leaving you frustrated and vulnerable. The Western Digital Red Pro WD181KFGX (WD181KFGX 2 PACK) 18TB/512MB 3.5" Hard Drive gives you massive, reliable storage designed for 24 × 7 multi-user environments, so you can keep your data flowing without interruption.
Key Features of a 18TB Hard Drive
- Capacity: 18 TB. Holds huge amounts of files, videos and backups in a single drive.
- Buffer Size: 512 MB. Provides quick data caching for smoother file transfers.
- Spindle Speed: 7200 RPM. Delivers fast read/write performance for demanding workloads.
- Interface: SATA 6 Gb/s. Ensures high-speed connectivity with modern NAS units.
- Form Factor: 3.5". Fits standard 3.5-inch drive bays in most NAS enclosures.
- MTBF: 2,500,000 hours. Offers exceptional reliability for continuous operation.
- Vibration Protection: Rotation Vibration (RV) sensor. Reduces performance loss from chassis vibration.
- Shock Protection: Multi-axis shock sensor with dynamic fly-height technology. Safeguards data during movement or impact.
- Power Consumption: 6.1 W read/write, 3.6 W idle, 0.9 W standby/sleep. Keeps energy costs low while active.
- Warranty: 5-year limited warranty. Provides peace of mind with long-term support.
Why Choose a Western Digital Hard Drive
If you manage a small business, a media studio, or a home office that relies on a NAS for file sharing, you need storage that can handle constant access without failing. Many drives struggle with heat, vibration or limited endurance, leading to downtime and data loss. Western Digital’s Red Pro line is built for exactly this scenario, offering enterprise-class durability and performance at a price that suits growing teams.
Benefits of Western Digital Hard Drive
- Continuous Operation: Designed for 24 × 7 use, so your NAS never skips a beat.
- Data Integrity: Advanced error recovery and low non-recoverable error rate protect your files.
- Quiet Performance: Operates at only 20 dBA, keeping your office environment peaceful.
- Easy Integration: NASware™ technology fine-tunes the drive for optimal compatibility with most NAS systems.
Usages of a 18TB Hard Drive
The 18 TB capacity makes this drive ideal for high-capacity NAS servers, video editing workstations, surveillance storage arrays and backup solutions that need to retain years of data without frequent upgrades. It fits perfectly into multi-bay RAID configurations, delivering both speed and resilience for critical business applications.
Specifications
| Miscellaneous |
| Miscellaneous / MTBF | 2,500,000hours |
| Storage |
| Storage / Type | Hard drive |
| Header |
| Header / Product Line | WD Red Pro |
| Header / Packaged Quantity | 2 |
| Dimensions & Weight |
| Dimensions & Weight / Height | 1in |
| Dimensions & Weight / Width | 4in |
| Dimensions & Weight / Depth | 5.8in |
| Dimensions & Weight / Weight | 24.34oz |
| Environmental Parameters |
| Environmental Parameters / Min Operating Temperature | 32 °F |
| Environmental Parameters / Max Operating Temperature | 149 °F |
| Environmental Parameters / Min Storage Temperature | -40 °F |
| Environmental Parameters / Max Storage Temperature | 158 °F |
| Environmental Parameters / Shock Tolerance (non-operating) | 250 g @ 2 ms |
| Environmental Parameters / Shock Tolerance (operating) | 50 g @ 2 ms |
| Environmental Parameters / Sound Emission | 20 dBA |
| General |
| General / Capacity | 18 TB |
| General / Depth | 5.8 in |
| General / Buffer Size | 512 MB |
| General / Width | 4 in |
| General / Weight | 24.34 oz |
| General / Interface | SATA 6Gb/s |
| General / Device Type | Hard drive - internal |
| General / Form Factor | 3.5" |
| General / Features | 24x7 continuous operation, Advanced Format technology, Conventional magnetic recording (CMR), Native Command Queuing (NCQ), Rotational Vibration (RV) sensor, Multi-axis shock sensor, Dynamic fly height technology, Error Recovery Control, workload up to 550 TB per year, NASware technology, Helium technology |
| General / Height | 1 in |
| Expansion & Connectivity |
| Expansion & Connectivity / Interfaces | 1 x SATA 6 Gb/s |
| Expansion & Connectivity / Compatible Bay | 3.5" |
| Performance |
| Performance / Drive Transfer Rate | 600 MBps (external) |
| Performance / Spindle Speed | 7200 rpm |
| Performance / Internal Data Rate | 272 MBps |
| Reliability |
| Reliability / 24x7 Operation | Yes |
| Reliability / MTBF | 2,500,000 hours |
| Reliability / Non-Recoverable Errors | 10 per 10^15 |
| Reliability / Load / Unload Cycles | 600,000 |
| Hard Drive |
| Hard Drive / Internal Data Rate | 272MBps |
| Hard Drive / Form Factor | 3.5" |
| Hard Drive / Non-Recoverable Errors | 10 per 10^15 |
| Hard Drive / Spindle Speed | 7200rpm |
| Hard Drive / Interface | Serial ATA-600 |
| Hard Drive / Form Factor (Short) | 3.5" |
| Hard Drive / 24x7 Operation | Yes |
| Hard Drive / Form Factor (Short) (metric) | 8.9 cm |
| Hard Drive / Capacity | 18TB |
| Hard Drive / Data Transfer Rate | 600MBps |
| Hard Drive / Buffer Size | 512MB |
| Hard Drive / Hard Drive Type | Internal hard drive |
| Hard Drive / Form Factor (metric) | 8.9 cm |
| Power |
| Power / Power Consumption | 6.1 watt (read) ¦ 6.1 watt (write) ¦ 3.6 watt (idle) ¦ 0.9 watt (standby) ¦ 0.9 watt (sleep) |
| Summary Details |
| HDD capacity | 18 TB |
| HDD speed | 7200 RPM |
| Storage drive buffer size | 512 MB |
| HDD size | 3.5" |
| Interface | Serial ATA |
