WD Purple Pro 26TB, model WD260PURP, is Western Digital's flagship high-capacity smart-video drive for surveillance recorders and analytics-oriented video storage. It is a CMR, 7200 RPM, 512MB-cache SATA drive with AllFrame AI, OptiNAND and WDDA positioning in WD's current public material.
This page is the buying and deployment guide for WD260PURP. The exact recording-method page at [/cmr-or-smr/wd260purp](/cmr-or-smr/wd260purp) remains the lookup; here the question is whether 26TB per bay is worth paying for in an NVR, VMS server or security infrastructure refresh.
The WD Purple Pro 26TB WD260PURP is a surveillance-first CMR hard drive for large NVRs, smart video recorders and analytics servers. It makes sense when you need WD's Purple Pro workload positioning, 26TB per bay, 550TB/year rating and five-year warranty. Use WD Red Pro instead when the system is primarily NAS/file-storage-first.
Manufacturer-published values for the exact product family. Retail listings can collapse these details, so match the part number before ordering.
| Spec | Value |
|---|---|
| Model number | WD260PURP |
| Capacity | 26TB decimal marketed capacity |
| Recording technology | CMR per Western Digital's current Purple Pro page and product brief |
| Platform | Helium WD Purple Pro smart-video drive with AllFrame AI, OptiNAND and WDDA positioning |
| Interface | SATA |
| Sector format | Advanced Format; verify host sector expectations for the exact recorder or server |
| Spindle speed | 7200 RPM |
| Cache / buffer | 512MB |
| Maximum sustained transfer rate | 287MB/s maximum sustained transfer rate |
| Workload rating | 550TB/year |
| Reliability rating | Up to 2.5M hours projected under WD's stated conditions |
| Warranty | 5-year limited warranty |
| Power | 6.2W read/write; 5.7W idle; 1.1W standby/sleep |
| Acoustics | 25dBA idle and 32dBA seek average in the WD Purple Pro product brief |
| Operating temperature | 0C to 65C operating; -40C to 70C non-operating |
| Compatibility note | Smart video surveillance systems; WD states support for up to 64 single-stream HD cameras and 32 AI streams under its published assumptions. |
No exact in-stock live row is currently matched for WD260PURP. Relevant live alternatives are shown so the page does not collapse into an empty catalogue.
Live prices · updated every 4-5 hours · last checked 2 hr ago · exact model not currently matched in live stock
| Model | Capacity | Recording | RPM | Workload TB/yr | Warranty | $/TB | Price | |
|---|---|---|---|---|---|---|---|---|
| 20TB ST20000VE002REFURB | 20TB | CMR | — | 550 | 5 yr | $25.00 | $500 | Buy |
| 18TB WD180PURZREFURB | 18TB | UNVERIFIED | — | — | — | $28.64 | $515 | Buy |
| 32TB ST32000VE000 | 32TB | CMR | — | 550 | 5 yr | $36.25 | $1160 | Buy |
Workload rating is recorded per part number from Seagate's datasheet for that exact model, 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 |
|---|---|---|---|---|---|
| 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. | |||||
Use cases are deployment patterns, not compatibility promises. The recorder, VMS or server must still support the exact drive capacity and model.
| Deployment | Why it fits | Check first |
|---|---|---|
| Large NVR | High raw capacity per bay extends retention where the recorder has limited drive slots. | Maximum supported HDD capacity and cooling. |
| Video analytics server | AI-tier drives are positioned for recording while footage is read for analysis. | Whether the software and chassis qualify the exact model. |
| Edge security appliance | One dense drive can reduce remote-site visits and spare logistics. | Temperature, vibration and physical service access. |
| Multi-bay recorder | A common model across bays simplifies spares and rebuild planning. | RAID level, hot spare policy and rebuild window. |
| General NAS | Possible only when the NAS vendor supports the exact drive. | NAS workload fit and support policy before price. |
Estimates only: 4 Mb/s per camera, H.265-style continuous recording, 24 hours/day and 15% reserved for recorder, filesystem or protection overhead. Real retention changes with codec, resolution, frame rate, motion and RAID layout.
| Cameras | Average bitrate | Recording | Overhead | Estimated retention |
|---|---|---|---|---|
| 8 cameras | 4 Mb/s each | 24 hours/day | 15% example overhead | 64 days |
| 16 cameras | 4 Mb/s each | 24 hours/day | 15% example overhead | 32 days |
| 32 cameras | 4 Mb/s each | 24 hours/day | 15% example overhead | 16 days |
| 64 cameras | 4 Mb/s each | 24 hours/day | 15% example overhead | 8 days |
Raw capacity is not usable capacity. This table shows the slot-level math before filesystem overhead, snapshots, reserved space and vendor-specific parity layouts.
| Drive count | Raw capacity | Single-parity usable | Dual-parity usable |
|---|---|---|---|
| 4 bays | 104TB | 78TB | 52TB |
| 6 bays | 156TB | 130TB | 104TB |
| 8 bays | 208TB | 182TB | 156TB |
| 12 bays | 312TB | 286TB | 260TB |
WD260PURP is the 26TB WD Purple Pro model currently listed by Western Digital. WD's product page and product brief identify it as CMR, SATA, 7200 RPM, 512MB cache, 287MB/s maximum transfer rate, 550TB/year workload and five-year limited warranty. The current brief also lists 2.5M-hour projected MTBF, 6.2W read/write power, 5.7W idle, and 25dBA idle acoustics.
The Purple Pro line is not the same as standard WD Purple. Purple Pro is WD's higher-workload smart-video tier, with AllFrame AI, OptiNAND and WDDA positioned for advanced recorders and video storage servers. Standard Purple can still be the right choice for smaller systems, but it is not the same 26TB product class.
Security integrators need it when a site has enough cameras that a smaller drive would force a larger recorder or more frequent service. Retail stores, warehouses, schools, campuses, hotels, manufacturing floors and municipal systems can all create this problem, especially where footage must be retained for weeks rather than days.
The common thread is not the business type. It is camera count, bitrate, retention policy and physical access. A drive in a remote cabinet that records continuously for years is a different purchase from a home NVR in a hallway closet. The higher-capacity Purple Pro is most rational where service visits, lost footage and extra chassis capacity are more expensive than the drive premium.
WD positions AllFrame AI for systems that capture multiple video streams and additional AI streams. WD's brief lists support for up to 64 HD cameras and 32 AI streams, with a footnote tying the camera support example to a single stream per camera at 3.2 Mbps, 1080p, H.265 and 25 fps.
That guidance should not be converted into an unsupported NVR compatibility promise. AI metadata, object detection, playback scrubbing and VMS indexing depend on the recorder and software stack. Treat the drive as a storage component designed for that class of workload, then qualify the complete recorder or server.
A 26TB label does not answer how many days of video you keep. Bitrate answers that. Continuous 4K H.264 can consume several times more storage than lower-bitrate H.265 or motion-triggered recording, and camera scenes with constant movement generate more data than static scenes.
Use the retention table above as an example, not a guarantee. Replace the bitrate with the measured aggregate bitrate from your recorder, subtract space reserved by the recorder or RAID layout, and keep margin for variable bitrate spikes.
At 26TB per drive, a failed disk is a long rebuild. RAID can protect against a drive failure, but it does not replace backup or prevent missed footage if the recorder is overloaded during reconstruction. Large NVRs should have a documented spare strategy and should not wait until a drive fails before discovering that replacement stock is scarce.
WD's current Purple Pro brief lists 6.2W read/write and 5.7W idle for the 26TB and 24TB models. That is efficient per terabyte, but a dense recorder still needs airflow. Do not fill a passively cooled or poorly ventilated enclosure with high-capacity 7200 RPM disks and expect spec-sheet power to solve the heat path.
WD260PURP belongs in surveillance-first systems. It can be a good drive for a video storage server, but a NAS that mostly serves files, backups, media and snapshots should compare against WD Red Pro 26TB before using Purple Pro.
For TrueNAS, Synology, QNAP and similar NAS environments, the support list matters. Purple Pro's CMR recording removes one class of risk, but it does not turn a surveillance drive into the NAS line. Use the exact compatibility entry, not the brand family alone.
The live module prioritizes WD260PURP exactly. If no exact row is available, nearby Purple Pro, Purple or SkyHawk AI surveillance rows may appear as alternatives, and they should be read exactly that way: alternatives for price context, not exact WD260PURP stock.
The closest decision pages are WD Purple Pro 26TB versus 24TB, SkyHawk AI 32TB versus WD Purple Pro 26TB, and WD Purple Pro 26TB versus WD Red Pro 26TB.
The 26TB WD Purple Pro model covered here is WD260PURP.
Yes. Western Digital's current WD Purple Pro product page and product brief list WD260PURP as CMR.
WD states support for up to 64 single-stream HD cameras and 32 AI streams for the Purple Pro brief. Its camera-support footnote uses 3.2 Mbps, 1080p, H.265 and 25 fps; real retention depends on your actual bitrate and recorder.
Use it in a NAS only when the NAS or server is surveillance-first and the exact model is qualified. For NAS/file-storage-first systems, WD Red Pro 26TB is the more natural WD line.
Only when the live price premium is small enough or bays are scarce enough. The 26TB model adds 2TB per drive over 24TB, an 8.3 percent raw-capacity gain.
No. Price per TB is the first screen, not the whole decision. 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.