WD Ultrastar HC555 18 TB 3.5 Inch SATA 6Gb/s Enterprise HDD
Brand: Western Digital | Category: Enterprise HDDs
SKU: 0B48723 | Part #: 0B48723 | MPN: WUH722018CLE6L4
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About the WD Ultrastar HC555 18 TB 3.5 Inch SATA 6Gb/s Enterprise HDD
The WD Ultrastar HC555 18 TB 3.5 Inch SATA 6Gb/s Enterprise HDD from Western Digital is enterprise-grade Enterprise HDDs hardware built for data centers. It features 18 TB capacity, 3.5" form factor, SATA 6Gb/s interface, 7,200 RPM speed. The WD Ultrastar HC555 is an 18 TB capacity enterprise hard disk drive built on Western Digital's HelioSeal helium-filled platform, which hermetically seals helium gas inside the drive enclosure to reduce internal turbulence, lower power consumption, and enable higher areal density compared to air-filled designs. Operating at 7200 RPM with a SATA 6Gb/s interface, the drive delivers sustained transfer rates suited to high-throughput data center operations. The 3.5-inch form fa Available in brand new condition. Western Digital enterprise hdds products are trusted by enterprises and data centers worldwide. Available from Omnixon Global. Contact our sales team to request a quote.
Technical Specifications
| Brand | Western Digital |
| Category | Enterprise HDDs |
| SKU | 0B48723 |
| Part Number | 0B48723 |
| MPN | WUH722018CLE6L4 |
| Condition | New |
| Capacity | 18 TB |
| Form Factor | 3.5" |
| Interface | SATA 6Gb/s |
| Speed | 7,200 RPM |
| Manufacturer Part Number | 0B48723 |
| Series | Ultrastar HC555 |
| Formatted Capacity | 18 TB |
| Form Factor | 3.5 Inch |
| Interface | SATA 6Gb/s |
| Rotational Speed | 7200 RPM |
| Cache (Buffer) | 512 MB |
| Areal Density | High — HelioSeal multi-disk helium platform |
| Workload Rating | 550 TB/year |
| MTBF | 2,500,000 hours |
| Annual Failure Rate (AFR) | 0.35% |
| Operating Power (Read/Write) | 7.4 W |
| Idle Power | 5.0 W |
| Operating Shock | 70 G (2 ms, half sine) |
| Non-Operating Shock | 250 G (2 ms, half sine) |
| Operating Temperature | 0°C to 60°C |
| Dimensions (L x W x H) | 147.0 mm x 101.6 mm x 26.1 mm |
| Weight | 650 g |
| RoHS Compliant | Yes |
| Encryption | None (0B48723 — non-SED model) |
Frequently Asked Questions about WD Ultrastar HC555 18 TB 3.5 Inch SATA 6Gb/s Enterprise HDD
What does the WD Ultrastar HC555 18 TB 3.5 Inch SATA 6Gb/s Enterprise HDD do?
At 18 TB, the WD Ultrastar HC555 18 TB 3.5 Inch SATA 6Gb/s Enterprise HDD 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.
What are the headline specs of the WD Ultrastar HC555 18 TB 3.5 Inch SATA 6Gb/s Enterprise HDD?
Key specifications for the WD Ultrastar HC555 18 TB 3.5 Inch SATA 6Gb/s Enterprise HDD: capacity 18 TB; form factor 3.5 Inch; interface SATA 6Gb/s; 5 Years support; new condition; model WUH722018CLE6L4; part number 0B48723; capacity 18 TB; interface SATA 6Gb/s; form factor 3.5 Inch; random write iops 550 TBW. Manufacturer part number 0B48723. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
Is the WD Ultrastar HC555 18 TB 3.5 Inch SATA 6Gb/s Enterprise HDD compatible with my infrastructure?
The WD Ultrastar HC555 18 TB 3.5 Inch SATA 6Gb/s Enterprise HDD 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.