Brand: Western Digital | Category: Enterprise HDDs
SKU: WD181KFGX | Part #: WD181KFGX | MPN: WD181KFGX
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The WD Red Pro 18TB (WD181KFGX) features a 512 MB cache buffer and sustained transfer rates optimized for continuous NAS workloads, making it ideal for organizations deploying large-scale backup and archival infrastructure. With CMR recording technology, helium-sealed construction, and a 1,000,000-hour MTBF, this Western Digital drive delivers enterprise-class reliability across 24-bay NAS enclosures. Storage architects and IT infrastructure teams specify the WD Red Pro for mission-critical environments requiring consistent performance under heavy, sustained I/O demands.
Operating at 7200 RPM with NASware 3.0 firmware and integrated rotational vibration sensors, the WD181KFGX minimizes errors in multi-drive arrays while maintaining low power consumption—7.4 W under typical read/write operations. Its 300 TB/year workload rating supports continuous operation across distributed storage clusters, data centers, and enterprise backup solutions. The drive's efficient thermal profile (0–65°C operating range) and 670 g form factor simplify installation in compact rack configurations across Middle East and EMEA deployments.
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| Brand | Western Digital |
| Category | Enterprise HDDs |
| SKU | WD181KFGX |
| Part Number | WD181KFGX |
| Condition | New |
| Capacity | 18TB |
| Form Factor | 3.5" |
| Interface | SATA 6Gb/s |
| Speed | Read: 267 MB/s, Write: 267 MB/s |
| Manufacturer Part Number | WD181KFGX |
| Form Factor | 3.5-inch |
| Capacity | 18 TB |
| Interface | SATA 6 Gb/s |
| Rotational Speed | 7200 RPM |
| Cache Buffer | 512 MB |
| Recording Technology | CMR (Conventional Magnetic Recording) |
| Internal Environment | Helium-sealed |
| Workload Rating | 300 TB/year |
| MTBF | 1,000,000 hours |
| Compatible Bay Count | Up to 24-bay NAS enclosures |
| Operating Temperature | 0°C to 65°C |
| Power – Read/Write | 7.4 W (typical) |
| Power – Idle | 5.0 W (typical) |
| Rotational Vibration (RV) Sensors | Yes |
| NASware Firmware Version | NASware 3.0 |
| Dimensions (L x W x H) | 147.0 mm x 101.6 mm x 26.1 mm |
| Weight | 670 g |
| SATA Backward Compatibility | SATA 3 Gb/s, SATA 1.5 Gb/s |
| Operating Mode | Continuous operation |
At 18TB, the WD Red Pro NAS HDD - 18TB suits enterprise data-center storage tiers — all-flash arrays, hyperconverged storage pools (vSAN, Ceph), database backends, and high-throughput backup repositories. The SATA 6Gb/s interface is supported by major server platforms.
Key specifications for the WD Red Pro NAS HDD - 18TB: capacity 18TB; form factor 3.5 inch; interface SATA 6Gb/s; new condition; drive media type HDD; storage form factor 3.5 inch; storage capacity 18TB; storage interface SATA 6Gb/s. Manufacturer part number WD181KFGX. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
The WD Red Pro NAS HDD - 18TB uses a SATA 6Gb/s interface in a 3.5 inch form factor. It's compatible with server platforms that expose this interface — typical deployments include Dell PowerEdge, HPE ProLiant, Lenovo ThinkSystem, and Supermicro SuperServer chassis. For specific vendor part-number compatibility, our team validates against the manufacturer support matrix.
