WD Gold 26TB and Ultrastar HC590 26TB sit close together in Western Digital's enterprise hard-drive world. Both are high-capacity CMR choices, both target heavy 24/7 storage duty, and both can be rational purchases.
The practical difference is not a made-up speed hierarchy. It is product positioning, channel, exact interface choices, system qualification and warranty/procurement handling.
Choose WD Gold 26TB when you need the retail/channel WD261KRYZ SATA drive, clean new-stock warranty handling and enterprise capacity for a server or workstation. Choose Ultrastar HC590 when a datacenter shelf, OEM storage system or procurement standard calls for WUH722626 variants, especially if SAS or a specific sector/security suffix is required.
Use this as the procurement-level screen before looking at live price rows.
| Decision point | WD Gold 26TB | Ultrastar HC590 26TB |
|---|---|---|
| Capacity | 26TB | 26TB |
| Recording | CMR | CMR/ePMR |
| Primary model | WD261KRYZ | WUH722626ALE6L4 family examples |
| Interface | SATA 6Gb/s | SATA 6Gb/s and SAS 12Gb/s variants |
| Cache | 512MB | 512MB |
| Workload / warranty | 550TB/year / 5 years | 550TB/year / 5 years |
| Best environment | Retail/channel enterprise SATA servers and workstations | Datacenter shelves, OEM storage and fleet procurement |
| Primary advantage | Simpler Gold retail identity and warranty path | WUH model-code choices for interface, format and security options |
| Main limitation | No SAS variant under WD Gold | More exact suffix work before ordering |
This shows the capacity delta only. The financial answer comes from the live $/TB rows on the page.
| Drive count | WD Gold 26TB raw | Ultrastar HC590 26TB raw | Raw delta |
|---|---|---|---|
| 4 bays | 104TB | 104TB | 0TB |
| 6 bays | 156TB | 156TB | 0TB |
| 8 bays | 208TB | 208TB | 0TB |
| 12 bays | 312TB | 312TB | 0TB |
No exact in-stock live row is currently matched for WD261KRYZ / WUH722626ALE6L4. Relevant live alternatives are shown for pricing context; verify qualification before treating any row as a substitute.
Live prices · updated about once a day · last checked 1 hr ago · one side may be unavailable; alternatives are not exact OEM replacements
| Model | Capacity | Recording | RPM | Workload TB/yr | Warranty | $/TB | Price | |
|---|---|---|---|---|---|---|---|---|
| 24TB WUH722624ALE6L4REFURB This offer: sold by BecTech Global · Amazon says Used / LikeNew | 24TB | UNVERIFIED | — | — | — | $41.00 | $984 | Buy on Amazon |
| WD Gold 22TB This offer: sold by BeachAudio · Amazon says New / Unknown | 22TB | UNVERIFIED | 7,200 | — | 5 yr | $48.51 | $1067 | Buy on Amazon |
| 22TB WUH722222ALE6L4 This offer: sold by Platinum Micro, Inc. · Amazon says New / Unknown | 22TB | UNVERIFIED | 7,200 | — | — | $66.55 | $1464 | Buy on Amazon |
Workload rating is recorded per part number from the manufacturer's published data for that exact model where available, not blanketed across the line — two drives of the same capacity can differ because they are different generations. A dash means the figure is not stated for that listing. Recording technology comes from the manufacturer's published CMR/SMR list; a model absent from that list is shown as UNVERIFIED rather than guessed. Rows priced above 3× this line's in-stock median are flagged and excluded from the winner callout and from every median we compute.
This table is computed from live DatacenterDisk rows when an exact in-stock match exists. It is intentionally blank for unavailable models rather than filled with stale prices.
| Live model | Drive price | $/TB | 1 drive | 4 drives | 8 drives | 12 drives |
|---|---|---|---|---|---|---|
| No exact in-stock row is available right now. Use the availability table for nearby live alternatives, then re-check the exact model before ordering. | ||||||
The honest answer is that WD Gold 26TB and HC590 overlap. A buyer should not invent a mechanical superiority story we have not found in any WD document. At the same 26TB capacity and conventional recording class, the choice follows the host system and purchase channel.
Gold is easier to specify as WD261KRYZ in a retail/server-integrator context. HC590 is easier to specify in a storage-shelf or OEM context because the WUH722626 model family exposes exact interface, sector-format, power-disable and security variants.
WD Gold 26TB is SATA. That is enough for many servers, direct-attach chassis, workstation storage and backup targets. It is not enough if the storage shelf requires SAS dual-port paths or a specific SAS format.
HC590 has SATA and SAS variants by model code. That can be an advantage, but it also means procurement has to be stricter. A title that says HC590 is not sufficient; the suffix must match the controller, backplane and sector format the system expects.
For a workstation or small server, WD Gold can be the cleaner buy because it is a straightforward SATA enterprise drive with a recognizable retail model. For a general-purpose NAS, neither Gold nor HC590 automatically beats WD Red Pro; use the NAS vendor's drive list and support policy first.
For TrueNAS or ZFS servers, both Gold and HC590 are conventional CMR choices, so the architecture risk is much lower than with host-managed SMR platforms. The remaining work is ordinary but important: controller support, cooling, vibration, warranty, spare strategy and price per protected terabyte.
At equal capacity, raw capacity math is identical. Four drives are 104TB raw, eight drives are 208TB raw, twelve drives are 312TB raw and twenty-four drives are 624TB raw. The live $/TB table is therefore the cleanest way to compare acquisition economics.
If one side is unavailable, do not use the other as a proof of market price. It is a different product line. For a fleet purchase, quote the exact model, condition and warranty terms, then compare protected capacity at the array level.
Buy WD Gold 26TB when the environment needs a SATA enterprise drive and WD261KRYZ is the simplest, warrantied, available path. Buy HC590 when the system is a datacenter/OEM platform or when SAS, sector format and WUH suffix qualification matter.
If both are live and both are equally qualified, choose the lower cost per protected terabyte. There is no need to turn the label into a universal winner.
Yes. WD Gold 26TB is CMR, and Western Digital's HC590 data sheet identifies the HC590 26TB family as CMR/ePMR.
No. WD261KRYZ is SATA. HC590 has SATA and SAS variants by WUH model code.
It is usually the better fit when the storage platform qualifies WUH Ultrastar model codes or needs SAS. Gold can still fit SATA enterprise servers when the system accepts it.
WD Gold is often simpler for a workstation because WD261KRYZ is a retail/channel SATA drive. HC590 can also work if the exact interface and warranty path are acceptable.
No. Price per TB is the first screen, not the whole decision - for the WD Gold 26TB vs WD Red Pro 26TB specifically: match recording method, interface, bay count, firmware support, warranty position and rebuild risk before accepting the cheapest row.
Specification claims on this page were checked against the pages below on 1 September 2026. Where a widely-repeated figure did not survive that check, we report what the source says now and say so in the text rather than repeating the familiar number.