WD Ultrastar DC HC560 20TB SAS
No pricing data yet for this market. Check back soon, or browse nearby HDD markets →.
Market signals
Derived from observed listings across all SKUs in this class.
▶What do OEM / Original / Compatible mean?
▶What do the signal colors mean?
Price by condition
Observed ranges split by drive condition. Recertified and pulled drives trade at significant discounts to new.
Market coverage
We track 3 part numbers in this market, but do not yet have eligible listing observations. Specifications, known part numbers, and nearby markets remain available below. Pricing and confidence bands will appear once enough current evidence is available.
Part numbers in this class
4 part numbers tracked. Not a guarantee of interchangeability — verify against your platform.
| Manufacturer | MPN | Certification | |
|---|---|---|---|
| Dell | 1D4CR | OEM | View SKU → |
| Western Digital | WUH722020BL5204 | Unknown | View SKU → |
| WD | WUH722020BLE6L4 | Original | View SKU → |
| WD | WUH722020AL5204 | Original | View SKU → |
Risk & compatibility signals
Equivalent part numbers
Parts grouped into this market share the defining HDD market-class attributes. Exact platform, firmware, and OEM compatibility should still be verified.
OEM-qualified equivalents
- 1D4CR (Dell) — active
Original manufacturer equivalents
- WUH722020BLE6L4 (WD) — active
- WUH722020AL5204 (WD) — active
Unclassified equivalents
- WUH722020BL5204 (Western Digital) — active
How to use this mapping
- If you were quoted any of the part numbers above, they correspond to this market.
- OEM-qualified parts offer the highest vendor support assurance and typically cost more.
- Original manufacturer parts often provide the best balance of cost and compatibility.
- Compatible alternatives may reduce cost but should be verified against platform policies.
Technical specifications
Western Digital Ultrastar DC HC560 20TB helium SAS HDD, 20TB nearline for dense arrays
More recent 20TB generation; liquidity improving as first refresh cycles occur
Understanding this HDD family
This market is identified by Ultrastar DC HC560, 20TB, SAS, 3.5in. Enterprise HDD model numbers often encode family, capacity, and interface, but exact firmware, sector format, and system compatibility should still be verified before purchase.
Decode Seagate, WD, and Toshiba enterprise HDD model numbers →
Other enterprise HDD market classes
Compare nearby drive classes, prioritizing the same family, manufacturer, capacity, and interface.
▶How to interpret HDD market pricing
New vs pulled drives
Enterprise HDDs are sold new (sealed, full warranty) or as pulls — drives removed from decommissioned servers and JBODs. Pulls are functionally identical to new but carry no manufacturer warranty. Secondary market pricing for pulls typically runs 25–40% below new, depending on capacity tier and drive age.
SAS vs SATA premium
SAS drives command a premium over SATA equivalents due to dual-port redundancy and higher sustained workload ratings. In the secondary market, SAS drives are more common in refurbished channels because they were deployed in higher-end arrays (SAN, JBOD shelves) that see faster refresh cycles.
Helium-sealed drives
Drives above 10TB are almost universally helium-sealed to reduce friction and enable higher platter density. Helium drives have different failure characteristics than air-filled drives — they are generally reliable but a compromised seal accelerates failure. Inspect seller condition notes carefully for refurbished helium drives.
Capacity tier pricing
Price-per-TB generally improves at higher capacity points, but secondary market availability varies. Drives in the 14–18TB range often show the best secondary value: mature enough to have supply from hyperscale decommissions, but still relevant as active storage capacity.
Signals are observations from available data at a point in time — not advice. Verify independently before transacting. Disclaimer
Get Pro updates for seller-level pricing and deeper market intelligence →