Market value history and modeled trend
12-month change per source
| Provider | Start | End | Change |
|---|---|---|---|
| openai | 2025-10-01 ($49.00) | 2026-10-09 ($49.00) | 0.00% |
| anthropic | 2025-10-01 ($59.00) | 2026-10-09 ($59.00) | 0.00% |
| gemini | 2025-10-01 ($89.96) | 2026-10-09 ($89.96) | 0.00% |
Underlying data tables
openai
| Date | Type | Price | Listing/source | Notes |
|---|---|---|---|---|
| 2025-10-01 | modeled estimate | $49.00 | Western Digital HUS726T4TAL5204 4TB 7.2K SAS 12Gb/s 3.5-inch 512e HDD, NetApp X375A variant | Flat fallback at the sole qualifying current ask; insufficient accepted historical evidence to model a trend. |
| 2025-11-01 | modeled estimate | $49.00 | Western Digital HUS726T4TAL5204 4TB 7.2K SAS 12Gb/s 3.5-inch 512e HDD, NetApp X375A variant | Flat fallback at the sole qualifying current ask; insufficient accepted historical evidence to model a trend. |
| 2025-12-01 | modeled estimate | $49.00 | Western Digital HUS726T4TAL5204 4TB 7.2K SAS 12Gb/s 3.5-inch 512e HDD, NetApp X375A variant | Flat fallback at the sole qualifying current ask; insufficient accepted historical evidence to model a trend. |
| 2026-01-01 | modeled estimate | $49.00 | Western Digital HUS726T4TAL5204 4TB 7.2K SAS 12Gb/s 3.5-inch 512e HDD, NetApp X375A variant | Flat fallback at the sole qualifying current ask; insufficient accepted historical evidence to model a trend. |
| 2026-02-01 | modeled estimate | $49.00 | Western Digital HUS726T4TAL5204 4TB 7.2K SAS 12Gb/s 3.5-inch 512e HDD, NetApp X375A variant | Flat fallback at the sole qualifying current ask; insufficient accepted historical evidence to model a trend. |
| 2026-03-01 | modeled estimate | $49.00 | Western Digital HUS726T4TAL5204 4TB 7.2K SAS 12Gb/s 3.5-inch 512e HDD, NetApp X375A variant | Flat fallback at the sole qualifying current ask; insufficient accepted historical evidence to model a trend. |
| 2026-04-01 | modeled estimate | $49.00 | Western Digital HUS726T4TAL5204 4TB 7.2K SAS 12Gb/s 3.5-inch 512e HDD, NetApp X375A variant | Flat fallback at the sole qualifying current ask; insufficient accepted historical evidence to model a trend. |
| 2026-05-01 | modeled estimate | $49.00 | Western Digital HUS726T4TAL5204 4TB 7.2K SAS 12Gb/s 3.5-inch 512e HDD, NetApp X375A variant | Flat fallback at the sole qualifying current ask; insufficient accepted historical evidence to model a trend. |
| 2026-06-01 | modeled estimate | $49.00 | Western Digital HUS726T4TAL5204 4TB 7.2K SAS 12Gb/s 3.5-inch 512e HDD, NetApp X375A variant | Flat fallback at the sole qualifying current ask; insufficient accepted historical evidence to model a trend. |
| 2026-07-01 | modeled estimate | $49.00 | Western Digital HUS726T4TAL5204 4TB 7.2K SAS 12Gb/s 3.5-inch 512e HDD, NetApp X375A variant | Flat fallback at the sole qualifying current ask; insufficient accepted historical evidence to model a trend. |
| 2026-08-01 | modeled estimate | $49.00 | Western Digital HUS726T4TAL5204 4TB 7.2K SAS 12Gb/s 3.5-inch 512e HDD, NetApp X375A variant | Flat fallback at the sole qualifying current ask; insufficient accepted historical evidence to model a trend. |
| 2026-09-01 | modeled estimate | $49.00 | Western Digital HUS726T4TAL5204 4TB 7.2K SAS 12Gb/s 3.5-inch 512e HDD, NetApp X375A variant | Flat fallback at the sole qualifying current ask; insufficient accepted historical evidence to model a trend. |
| 2026-10-01 | modeled estimate | $49.00 | Western Digital HUS726T4TAL5204 4TB 7.2K SAS 12Gb/s 3.5-inch 512e HDD, NetApp X375A variant | Flat fallback at the sole qualifying current ask; insufficient accepted historical evidence to model a trend. |
| 2026-10-09 | active listing | $49.00 | Western Digital HUS726T4TAL5204 4TB 7.2K SAS 12Gb/s 3.5-inch 512e HDD, NetApp X375A variant | Exact HUS726T4TAL5204 drive model; NetApp-labeled variant without a Lenovo tray shown. |
| 2026-10-09 | active listing | $29.99 | NetApp 0B36090 WD Ultrastar HUS726T4TAL5204 4TB 12Gb/s SAS 7.2K 3.5-inch HDD | Working-environment pull; NetApp variant without a Lenovo tray specified. |
| 2026-10-09 | active listing | $49.99 | Western Digital HUS726T4TAL5204 4TB 7.2K SAS 12Gb/s 3.5-inch HDD | Wiped working-system pull; bare-drive listing without a Lenovo tray specified. |
| 2026-10-09 | active listing | $49.00 | Western Digital HUS726T4TAL5204 4TB 7.2K SAS 12Gb/s 3.5-inch 512e HDD NetApp X375A | Seller-refurbished NetApp variant; tested and functional, without a Lenovo tray specified. |
| 2026-10-09 | active listing | $115.32 | HGST Hitachi Ultrastar 7K6 HUS726T4TAL5204 4TB 7200RPM SAS 12Gbps 3.5-inch HDD | Independent-refurbisher listing; bare-drive configuration without a Lenovo tray specified. |
anthropic
| Date | Type | Price | Listing/source | Notes |
|---|---|---|---|---|
| 2025-10-01 | modeled estimate | $59.00 | WD 4TB SAS 12Gbps 3.5" HUS726T4TAL5204 Server Hard Drive | Anchor = median of three accepted active used asks for the HUS726T4TAL5204 4TB 7.2K SAS drive (59.00, 59.00, 144.00) = USD 59.00, excluding shipping and tax. No dated archived asking-price evidence met the historical-observation bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2025-11-01 | modeled estimate | $59.00 | WD 4TB SAS 12Gbps 3.5" HUS726T4TAL5204 Server Hard Drive | Anchor = median of three accepted active used asks for the HUS726T4TAL5204 4TB 7.2K SAS drive (59.00, 59.00, 144.00) = USD 59.00, excluding shipping and tax. No dated archived asking-price evidence met the historical-observation bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2025-12-01 | modeled estimate | $59.00 | WD 4TB SAS 12Gbps 3.5" HUS726T4TAL5204 Server Hard Drive | Anchor = median of three accepted active used asks for the HUS726T4TAL5204 4TB 7.2K SAS drive (59.00, 59.00, 144.00) = USD 59.00, excluding shipping and tax. No dated archived asking-price evidence met the historical-observation bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-01-01 | modeled estimate | $59.00 | WD 4TB SAS 12Gbps 3.5" HUS726T4TAL5204 Server Hard Drive | Anchor = median of three accepted active used asks for the HUS726T4TAL5204 4TB 7.2K SAS drive (59.00, 59.00, 144.00) = USD 59.00, excluding shipping and tax. No dated archived asking-price evidence met the historical-observation bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-02-01 | modeled estimate | $59.00 | WD 4TB SAS 12Gbps 3.5" HUS726T4TAL5204 Server Hard Drive | Anchor = median of three accepted active used asks for the HUS726T4TAL5204 4TB 7.2K SAS drive (59.00, 59.00, 144.00) = USD 59.00, excluding shipping and tax. No dated archived asking-price evidence met the historical-observation bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-03-01 | modeled estimate | $59.00 | WD 4TB SAS 12Gbps 3.5" HUS726T4TAL5204 Server Hard Drive | Anchor = median of three accepted active used asks for the HUS726T4TAL5204 4TB 7.2K SAS drive (59.00, 59.00, 144.00) = USD 59.00, excluding shipping and tax. No dated archived asking-price evidence met the historical-observation bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-04-01 | modeled estimate | $59.00 | WD 4TB SAS 12Gbps 3.5" HUS726T4TAL5204 Server Hard Drive | Anchor = median of three accepted active used asks for the HUS726T4TAL5204 4TB 7.2K SAS drive (59.00, 59.00, 144.00) = USD 59.00, excluding shipping and tax. No dated archived asking-price evidence met the historical-observation bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-05-01 | modeled estimate | $59.00 | WD 4TB SAS 12Gbps 3.5" HUS726T4TAL5204 Server Hard Drive | Anchor = median of three accepted active used asks for the HUS726T4TAL5204 4TB 7.2K SAS drive (59.00, 59.00, 144.00) = USD 59.00, excluding shipping and tax. No dated archived asking-price evidence met the historical-observation bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-06-01 | modeled estimate | $59.00 | WD 4TB SAS 12Gbps 3.5" HUS726T4TAL5204 Server Hard Drive | Anchor = median of three accepted active used asks for the HUS726T4TAL5204 4TB 7.2K SAS drive (59.00, 59.00, 144.00) = USD 59.00, excluding shipping and tax. No dated archived asking-price evidence met the historical-observation bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-07-01 | modeled estimate | $59.00 | WD 4TB SAS 12Gbps 3.5" HUS726T4TAL5204 Server Hard Drive | Anchor = median of three accepted active used asks for the HUS726T4TAL5204 4TB 7.2K SAS drive (59.00, 59.00, 144.00) = USD 59.00, excluding shipping and tax. No dated archived asking-price evidence met the historical-observation bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-08-01 | modeled estimate | $59.00 | WD 4TB SAS 12Gbps 3.5" HUS726T4TAL5204 Server Hard Drive | Anchor = median of three accepted active used asks for the HUS726T4TAL5204 4TB 7.2K SAS drive (59.00, 59.00, 144.00) = USD 59.00, excluding shipping and tax. No dated archived asking-price evidence met the historical-observation bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-09-01 | modeled estimate | $59.00 | WD 4TB SAS 12Gbps 3.5" HUS726T4TAL5204 Server Hard Drive | Anchor = median of three accepted active used asks for the HUS726T4TAL5204 4TB 7.2K SAS drive (59.00, 59.00, 144.00) = USD 59.00, excluding shipping and tax. No dated archived asking-price evidence met the historical-observation bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-10-01 | modeled estimate | $59.00 | WD 4TB SAS 12Gbps 3.5" HUS726T4TAL5204 Server Hard Drive | Anchor = median of three accepted active used asks for the HUS726T4TAL5204 4TB 7.2K SAS drive (59.00, 59.00, 144.00) = USD 59.00, excluding shipping and tax. No dated archived asking-price evidence met the historical-observation bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-10-09 | active listing | $59.00 | Western Digital HUS726T4TAL5204 4TB 7.2K 3.5" SAS 12G Server Hard Drive | Exact variant HUS726T4TAL5204, 4TB 7.2K 3.5-inch SAS 12Gb/s; listed condition Used; bare drive, no Lenovo tray stated. |
| 2026-10-09 | active listing | $59.00 | WD 4TB SAS 12Gbps 3.5" HUS726T4TAL5204 Server Hard Drive | Exact variant HUS726T4TAL5204, 4TB 7.2K SAS, hot-swap/removable; in stock with 5 available; per-unit price. |
| 2026-10-09 | active listing | $144.00 | Western Digital HGST 0B36048 / HUS726T4TAL5204 4TB 3.5" 7.2K 512e SE SAS HDD | Exact variant HUS726T4TAL5204 / HGST PN 0B36048; seller-refurbished tested pull with one-year warranty, so priced above bare tested-pull asks; retained in anchor median as within 3x bound. |
gemini
| Date | Type | Price | Listing/source | Notes |
|---|---|---|---|---|
| 2025-10-01 | modeled estimate | $89.96 | WD Ultrastar DC HC310 4TB 7.2K SAS 12Gb/s 3.5" HDD HUS726T4TAL5204 100% Health | Low confidence due to fewer than three qualifying direct listing comparables; all 13 monthly values held flat at the grounded active listing anchor. |
| 2025-11-01 | modeled estimate | $89.96 | WD Ultrastar DC HC310 4TB 7.2K SAS 12Gb/s 3.5" HDD HUS726T4TAL5204 100% Health | Low confidence due to fewer than three qualifying direct listing comparables; all 13 monthly values held flat at the grounded active listing anchor. |
| 2025-12-01 | modeled estimate | $89.96 | WD Ultrastar DC HC310 4TB 7.2K SAS 12Gb/s 3.5" HDD HUS726T4TAL5204 100% Health | Low confidence due to fewer than three qualifying direct listing comparables; all 13 monthly values held flat at the grounded active listing anchor. |
| 2026-01-01 | modeled estimate | $89.96 | WD Ultrastar DC HC310 4TB 7.2K SAS 12Gb/s 3.5" HDD HUS726T4TAL5204 100% Health | Low confidence due to fewer than three qualifying direct listing comparables; all 13 monthly values held flat at the grounded active listing anchor. |
| 2026-02-01 | modeled estimate | $89.96 | WD Ultrastar DC HC310 4TB 7.2K SAS 12Gb/s 3.5" HDD HUS726T4TAL5204 100% Health | Low confidence due to fewer than three qualifying direct listing comparables; all 13 monthly values held flat at the grounded active listing anchor. |
| 2026-03-01 | modeled estimate | $89.96 | WD Ultrastar DC HC310 4TB 7.2K SAS 12Gb/s 3.5" HDD HUS726T4TAL5204 100% Health | Low confidence due to fewer than three qualifying direct listing comparables; all 13 monthly values held flat at the grounded active listing anchor. |
| 2026-04-01 | modeled estimate | $89.96 | WD Ultrastar DC HC310 4TB 7.2K SAS 12Gb/s 3.5" HDD HUS726T4TAL5204 100% Health | Low confidence due to fewer than three qualifying direct listing comparables; all 13 monthly values held flat at the grounded active listing anchor. |
| 2026-05-01 | modeled estimate | $89.96 | WD Ultrastar DC HC310 4TB 7.2K SAS 12Gb/s 3.5" HDD HUS726T4TAL5204 100% Health | Low confidence due to fewer than three qualifying direct listing comparables; all 13 monthly values held flat at the grounded active listing anchor. |
| 2026-06-01 | modeled estimate | $89.96 | WD Ultrastar DC HC310 4TB 7.2K SAS 12Gb/s 3.5" HDD HUS726T4TAL5204 100% Health | Low confidence due to fewer than three qualifying direct listing comparables; all 13 monthly values held flat at the grounded active listing anchor. |
| 2026-07-01 | modeled estimate | $89.96 | WD Ultrastar DC HC310 4TB 7.2K SAS 12Gb/s 3.5" HDD HUS726T4TAL5204 100% Health | Low confidence due to fewer than three qualifying direct listing comparables; all 13 monthly values held flat at the grounded active listing anchor. |
| 2026-08-01 | modeled estimate | $89.96 | WD Ultrastar DC HC310 4TB 7.2K SAS 12Gb/s 3.5" HDD HUS726T4TAL5204 100% Health | Low confidence due to fewer than three qualifying direct listing comparables; all 13 monthly values held flat at the grounded active listing anchor. |
| 2026-09-01 | modeled estimate | $89.96 | WD Ultrastar DC HC310 4TB 7.2K SAS 12Gb/s 3.5" HDD HUS726T4TAL5204 100% Health | Low confidence due to fewer than three qualifying direct listing comparables; all 13 monthly values held flat at the grounded active listing anchor. |
| 2026-10-01 | modeled estimate | $89.96 | WD Ultrastar DC HC310 4TB 7.2K SAS 12Gb/s 3.5" HDD HUS726T4TAL5204 100% Health | Low confidence due to fewer than three qualifying direct listing comparables; all 13 monthly values held flat at the grounded active listing anchor. |
| 2026-10-09 | active listing | $89.96 | WD Ultrastar DC HC310 4TB 7.2K SAS 12Gb/s 3.5" HDD HUS726T4TAL5204 100% Health | Direct listing for tested pull Western Digital / HGST Ultrastar DC HC310 4TB SAS 12Gb/s 3.5-inch enterprise HDD model HUS726T4TAL5204. |
Sources
- Western Digital HUS726T4TAL5204 4TB 7.2K SAS 12Gb/s 3.5-inch 512e HDD, NetApp X375A variant
- NetApp 0B36090 WD Ultrastar HUS726T4TAL5204 4TB 12Gb/s SAS 7.2K 3.5-inch HDD
- Western Digital HUS726T4TAL5204 4TB 7.2K SAS 12Gb/s 3.5-inch HDD
- Western Digital HUS726T4TAL5204 4TB 7.2K SAS 12Gb/s 3.5-inch 512e HDD NetApp X375A
- HGST Hitachi Ultrastar 7K6 HUS726T4TAL5204 4TB 7200RPM SAS 12Gbps 3.5-inch HDD
- WD 4TB SAS 12Gbps 3.5" HUS726T4TAL5204 Server Hard Drive
- Western Digital HUS726T4TAL5204 4TB 7.2K 3.5" SAS 12G Server Hard Drive
- Western Digital HGST 0B36048 / HUS726T4TAL5204 4TB 3.5" 7.2K 512e SE SAS HDD
- WD Ultrastar DC HC310 4TB 7.2K SAS 12Gb/s 3.5" HDD HUS726T4TAL5204 100% Health
Notes
- Active listings and historical observations are source-grounded. Dashed monthly values are provider-modeled estimates, not observed listings or transactions.
- Modeled estimates cover the current month and previous 12 months and require a grounded observation from the same provider.
- Prices are USD per single item and exclude shipping and tax.
- Low confidence: only one qualifying active USD listing was grounded.
- The accepted listing matches the specified 4TB HUS726T4TAL5204 mechanism but does not establish inclusion of the Lenovo hot-swap tray.
- openai validation accepted 14 of 14 raw points.
- Identity reconciliation: the supplied record pairs Lenovo PN 7XB7A00045 with a 4TB HUS726T4TAL5204 drive, but Lenovo's ThinkSystem HDD reference lists 7XB7A00045 as the 3.5-inch 8TB 7.2K SAS 12Gb 512e option, while 4TB 3.5-inch 7.2K SAS ThinkSystem options carry other part numbers. Research therefore followed the explicit drive model HUS726T4TAL5204 (4TB, 7200 RPM, 3.5-inch, SAS 12Gb/s) as the governing identity.
- Low confidence: only three qualifying used comparables were found, and all three are on a single marketplace domain, so the domain-diversity target was not met within the three-query current-listing budget. Non-eBay results for this model were new-condition, backordered, distributor, or non-USD pages and were excluded.
- Excluded from comparables: an open-box NetApp-firmware-restricted unit (condition and usability mismatch), new-condition distributor and reseller pages (e.g., USD 252 and USD 375 new asks), 8TB 7XB7A00045 listings (capacity mismatch), category/search and price-comparison pages, and out-of-stock or sold items.
- The 144.00 warranty-backed refurbisher ask is above bare tested-pull levels but within the 3x outlier bound of the initial 59.00 median, so it was retained; the median is unaffected by it.
- Tray/caddy note: the accepted comparables are the bare enterprise drive model; Lenovo-branded hot-swap tray inclusion is not confirmed in these listings and would typically add cost.
- anthropic validation accepted 16 of 16 raw points.