The WD Ultrastar DC HC555 20TB (WUH722020CLE6L4) is a 3.5-inch helium-filled enterprise data center hard drive with a SATA 6Gb/s interface, 7200 RPM, 512MB cache and sustained transfer rates up to 285MB/s, using 512e sector format.
It is designed for 24x7 servers, NAS and storage arrays that need high capacity and reliability, with a projected 2.5 million-hour MTBF, a 550TB/year workload rating and a 5-year limited warranty from Western Digital.
Key Features
20TB capacity per drive for dense server and NAS storage
7200 RPM with up to 285MB/s sustained transfer rate
512MB cache for responsive data access
SATA 6Gb/s interface with 512e sector format for broad compatibility
Helium-filled design for efficiency: about 5.3 W idle
Built for 24x7 operation with a projected 2.5M-hour MTBF and 550TB/year workload
SE (Base) model: no encryption, with sanitize overwrite support
5-year limited manufacturer warranty
Full Specifications
General
Device Type
Internal enterprise hard drive (HDD)
Brand
Western Digital
Model
Ultrastar DC HC555
Part Number
WUH722020CLE6L4
Product ID
0B48724
Capacity
20TB
Performance
Interface
SATA 6Gb/s
Rotational Speed
7200 RPM
Cache
512MB
Sustained Transfer Rate
Up to 285 MB/s
Average Latency
4.16 ms
Sector Format
512e
Security
SE (Base, no encryption)
Reliability
MTBF
2.5 million hours (projected)
Workload Rating
550TB/year
Load/Unload Cycles
600,000
Non-Recoverable Read Errors
1 in 10^15 bits
Availability
24x7
Power
Operating Power (typical)
About 6.4 W
Idle Power
5.3 W
Physical
Form Factor
3.5-inch
Dimensions (H x L x W)
26.1 x 147 x 101.6 mm
Weight
690 g (max)
Operating Temperature
5°C to 60°C
Warranty
Warranty
5-year limited warranty (manufacturer)
Who Is This For?
Data centers and server rooms needing high-capacity 3.5-inch SATA drives
Businesses expanding NAS and file-server storage
Video surveillance and backup archives that run 24x7
IT teams building RAID arrays for large data sets
How It Compares
Compared with the 18TB Ultrastar DC HC555 (WUH722018CLE6L4), this 20TB model adds 2TB more capacity per drive bay on the same 7200 RPM, SATA 6Gb/s platform.
Why Buy from PC PARK?
100% original product with official warranty
Delivery to all regions of Saudi Arabia (Riyadh, Jeddah, Dammam and more)
Secure online checkout
Pre- and after-sales support from the PC PARK team
Frequently Asked Questions
What is the capacity and interface of WUH722020CLE6L4? It is a 20TB 3.5-inch hard drive with a SATA 6Gb/s interface.
How fast is the WD Ultrastar DC HC555 20TB? It spins at 7200 RPM with up to 285MB/s sustained transfer rate and 512MB cache.
Is the WD Ultrastar DC HC555 suitable for NAS? Yes, it is an enterprise drive built for 24x7 servers, NAS and storage arrays.
What does SE mean on this drive? SE is the base security model without encryption, supporting sanitize overwrite.
What is the warranty? Western Digital provides a 5-year limited warranty.
Is the product original? Yes, PC PARK sells 100% original Western Digital products with official warranty.
Do you deliver in Saudi Arabia? PC PARK delivers to all regions of Saudi Arabia, with delivery time shown at checkout.
Order the WD Ultrastar DC HC555 20TB (WUH722020CLE6L4) from PC PARK with official warranty and fast delivery across Saudi Arabia.
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