WD Ultrastar DC HA340 8TB SAS
Observed market signals for this HDD class — aggregated across sellers and SKU tiers. Use the bands below to benchmark quotes. Pro subscribers see exact observed prices.
Signals are observations from available data at a point in time — not advice. Verify independently before transacting. Disclaimer
Data as of Apr 16, 2026Market signals
Derived from observed listings across all SKUs in this class.
Technical specifications
Western Digital Ultrastar DC HA340 8TB SAS enterprise HDD for entry capacity
Older Ultrastar 8TB commonly decommissioned from legacy arrays
Equivalent part numbers
The following part numbers are considered functionally equivalent for this memory class. Differences between them relate to vendor qualification, branding, warranty, or support.
Core functionality is the same.
Original manufacturer equivalents
- WUS721008AL5204 (WD) — eol
How to use this mapping
- If you were quoted any of the part numbers above, they correspond to this canonical memory class.
- 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.
Market price confidence
The figures below reflect observed market pricing across multiple sellers and SKUs. Ranges and typical bands help distinguish outliers from defensible market prices.
Median: $35.24
3 listings • 1 SKU(s)
How to interpret this
- Prices within the typical market band represent common, defensible market rates.
- Listings near the lower bound may reflect limited stock, condition differences, or less-established sellers.
- Prices above the typical band often reflect vendor qualification, warranty, or support premiums.
Part numbers in this class
These part numbers map to this HDD class.
| Brand | MPN | Certification | Lifecycle | |
|---|---|---|---|---|
| WD | WUS721008AL5204 | Original | eol | View SKU → |
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.