Market value history and modeled trend
12-month change per source
| Provider | Start | End | Change |
|---|---|---|---|
| openai | 2025-09-01 ($24.95) | 2026-09-25 ($22.54) | -9.66% |
| anthropic | 2025-09-01 ($33.37) | 2026-09-25 ($25.49) | -23.61% |
| gemini | 2025-09-01 ($29.95) | 2026-09-25 ($29.95) | 0.00% |
Underlying data tables
openai
| Date | Type | Price | Listing/source | Notes |
|---|---|---|---|---|
| 2025-09-01 | modeled estimate | $24.95 | Intel X520-DA2 E10G42BTDAG1P5 with Tall Bracket | Flat fallback at the USD 24.95 median of three normal-channel full-height used asks; no qualifying dated historical observations supported a trend. |
| 2025-10-01 | modeled estimate | $24.95 | Intel X520-DA2 E10G42BTDAG1P5 with Tall Bracket | Flat fallback at the USD 24.95 median of three normal-channel full-height used asks; no qualifying dated historical observations supported a trend. |
| 2025-11-01 | modeled estimate | $24.95 | Intel X520-DA2 E10G42BTDAG1P5 with Tall Bracket | Flat fallback at the USD 24.95 median of three normal-channel full-height used asks; no qualifying dated historical observations supported a trend. |
| 2025-12-01 | modeled estimate | $24.95 | Intel X520-DA2 E10G42BTDAG1P5 with Tall Bracket | Flat fallback at the USD 24.95 median of three normal-channel full-height used asks; no qualifying dated historical observations supported a trend. |
| 2026-01-01 | modeled estimate | $24.95 | Intel X520-DA2 E10G42BTDAG1P5 with Tall Bracket | Flat fallback at the USD 24.95 median of three normal-channel full-height used asks; no qualifying dated historical observations supported a trend. |
| 2026-02-01 | modeled estimate | $24.95 | Intel X520-DA2 E10G42BTDAG1P5 with Tall Bracket | Flat fallback at the USD 24.95 median of three normal-channel full-height used asks; no qualifying dated historical observations supported a trend. |
| 2026-03-01 | modeled estimate | $24.95 | Intel X520-DA2 E10G42BTDAG1P5 with Tall Bracket | Flat fallback at the USD 24.95 median of three normal-channel full-height used asks; no qualifying dated historical observations supported a trend. |
| 2026-04-01 | modeled estimate | $24.95 | Intel X520-DA2 E10G42BTDAG1P5 with Tall Bracket | Flat fallback at the USD 24.95 median of three normal-channel full-height used asks; no qualifying dated historical observations supported a trend. |
| 2026-05-01 | modeled estimate | $24.95 | Intel X520-DA2 E10G42BTDAG1P5 with Tall Bracket | Flat fallback at the USD 24.95 median of three normal-channel full-height used asks; no qualifying dated historical observations supported a trend. |
| 2026-06-01 | modeled estimate | $24.95 | Intel X520-DA2 E10G42BTDAG1P5 with Tall Bracket | Flat fallback at the USD 24.95 median of three normal-channel full-height used asks; no qualifying dated historical observations supported a trend. |
| 2026-07-01 | modeled estimate | $24.95 | Intel X520-DA2 E10G42BTDAG1P5 with Tall Bracket | Flat fallback at the USD 24.95 median of three normal-channel full-height used asks; no qualifying dated historical observations supported a trend. |
| 2026-08-01 | modeled estimate | $24.95 | Intel X520-DA2 E10G42BTDAG1P5 with Tall Bracket | Flat fallback at the USD 24.95 median of three normal-channel full-height used asks; no qualifying dated historical observations supported a trend. |
| 2026-09-01 | modeled estimate | $24.95 | Intel X520-DA2 E10G42BTDAG1P5 with Tall Bracket | Flat fallback at the USD 24.95 median of three normal-channel full-height used asks; no qualifying dated historical observations supported a trend. |
| 2026-09-25 | active listing | $22.54 | Intel X520-DA2 Dual Port 10GB SFP+ PCIe Adapter with Full Height Bracket | Ten available; full-height bracket; shipping excluded. |
| 2026-09-25 | active listing | $24.95 | Intel X520-DA2 E10G42BTDAG1P5 with Tall Bracket | Three available; tall/full-height bracket. |
| 2026-09-25 | active listing | $34.95 | Intel E10G42BTDA X520-DA2 Dual-Port 10GbE Full-Height Adapter | Tested genuine Intel pull; full-height bracket; transceivers excluded. |
| 2026-09-25 | active listing | $125.00 | Dell 01V3J Intel X520-DA2 Dual-Port 10GbE SFP+ Full Height | Enterprise reseller listing with warranty; premium outlier above three times the initial median and excluded from anchor. |
anthropic
| Date | Type | Price | Listing/source | Notes |
|---|---|---|---|---|
| 2025-09-01 | modeled estimate | $33.37 | INTEL X520-DA2 E10G42BTDAG1P5 (eBay) | Anchor = median of four grounded active used/refurbished per-unit asks for Intel X520-DA2 dual-port 10GbE SFP+ adapters (22.49, 25.49, 41.25, 49.00 USD, all excluding shipping and tax) = 33.37 USD. No outliers fell below one-third or above three times the initial median, so all four were retained. No dated archived or price-history observations met the evidence bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2025-10-01 | modeled estimate | $33.37 | INTEL X520-DA2 E10G42BTDAG1P5 (eBay) | Anchor = median of four grounded active used/refurbished per-unit asks for Intel X520-DA2 dual-port 10GbE SFP+ adapters (22.49, 25.49, 41.25, 49.00 USD, all excluding shipping and tax) = 33.37 USD. No outliers fell below one-third or above three times the initial median, so all four were retained. No dated archived or price-history observations met the evidence bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2025-11-01 | modeled estimate | $33.37 | INTEL X520-DA2 E10G42BTDAG1P5 (eBay) | Anchor = median of four grounded active used/refurbished per-unit asks for Intel X520-DA2 dual-port 10GbE SFP+ adapters (22.49, 25.49, 41.25, 49.00 USD, all excluding shipping and tax) = 33.37 USD. No outliers fell below one-third or above three times the initial median, so all four were retained. No dated archived or price-history observations met the evidence bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2025-12-01 | modeled estimate | $33.37 | INTEL X520-DA2 E10G42BTDAG1P5 (eBay) | Anchor = median of four grounded active used/refurbished per-unit asks for Intel X520-DA2 dual-port 10GbE SFP+ adapters (22.49, 25.49, 41.25, 49.00 USD, all excluding shipping and tax) = 33.37 USD. No outliers fell below one-third or above three times the initial median, so all four were retained. No dated archived or price-history observations met the evidence bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-01-01 | modeled estimate | $33.37 | INTEL X520-DA2 E10G42BTDAG1P5 (eBay) | Anchor = median of four grounded active used/refurbished per-unit asks for Intel X520-DA2 dual-port 10GbE SFP+ adapters (22.49, 25.49, 41.25, 49.00 USD, all excluding shipping and tax) = 33.37 USD. No outliers fell below one-third or above three times the initial median, so all four were retained. No dated archived or price-history observations met the evidence bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-02-01 | modeled estimate | $33.37 | INTEL X520-DA2 E10G42BTDAG1P5 (eBay) | Anchor = median of four grounded active used/refurbished per-unit asks for Intel X520-DA2 dual-port 10GbE SFP+ adapters (22.49, 25.49, 41.25, 49.00 USD, all excluding shipping and tax) = 33.37 USD. No outliers fell below one-third or above three times the initial median, so all four were retained. No dated archived or price-history observations met the evidence bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-03-01 | modeled estimate | $33.37 | INTEL X520-DA2 E10G42BTDAG1P5 (eBay) | Anchor = median of four grounded active used/refurbished per-unit asks for Intel X520-DA2 dual-port 10GbE SFP+ adapters (22.49, 25.49, 41.25, 49.00 USD, all excluding shipping and tax) = 33.37 USD. No outliers fell below one-third or above three times the initial median, so all four were retained. No dated archived or price-history observations met the evidence bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-04-01 | modeled estimate | $33.37 | INTEL X520-DA2 E10G42BTDAG1P5 (eBay) | Anchor = median of four grounded active used/refurbished per-unit asks for Intel X520-DA2 dual-port 10GbE SFP+ adapters (22.49, 25.49, 41.25, 49.00 USD, all excluding shipping and tax) = 33.37 USD. No outliers fell below one-third or above three times the initial median, so all four were retained. No dated archived or price-history observations met the evidence bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-05-01 | modeled estimate | $33.37 | INTEL X520-DA2 E10G42BTDAG1P5 (eBay) | Anchor = median of four grounded active used/refurbished per-unit asks for Intel X520-DA2 dual-port 10GbE SFP+ adapters (22.49, 25.49, 41.25, 49.00 USD, all excluding shipping and tax) = 33.37 USD. No outliers fell below one-third or above three times the initial median, so all four were retained. No dated archived or price-history observations met the evidence bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-06-01 | modeled estimate | $33.37 | INTEL X520-DA2 E10G42BTDAG1P5 (eBay) | Anchor = median of four grounded active used/refurbished per-unit asks for Intel X520-DA2 dual-port 10GbE SFP+ adapters (22.49, 25.49, 41.25, 49.00 USD, all excluding shipping and tax) = 33.37 USD. No outliers fell below one-third or above three times the initial median, so all four were retained. No dated archived or price-history observations met the evidence bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-07-01 | modeled estimate | $33.37 | INTEL X520-DA2 E10G42BTDAG1P5 (eBay) | Anchor = median of four grounded active used/refurbished per-unit asks for Intel X520-DA2 dual-port 10GbE SFP+ adapters (22.49, 25.49, 41.25, 49.00 USD, all excluding shipping and tax) = 33.37 USD. No outliers fell below one-third or above three times the initial median, so all four were retained. No dated archived or price-history observations met the evidence bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-08-01 | modeled estimate | $33.37 | INTEL X520-DA2 E10G42BTDAG1P5 (eBay) | Anchor = median of four grounded active used/refurbished per-unit asks for Intel X520-DA2 dual-port 10GbE SFP+ adapters (22.49, 25.49, 41.25, 49.00 USD, all excluding shipping and tax) = 33.37 USD. No outliers fell below one-third or above three times the initial median, so all four were retained. No dated archived or price-history observations met the evidence bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-09-01 | modeled estimate | $33.37 | INTEL X520-DA2 E10G42BTDAG1P5 (eBay) | Anchor = median of four grounded active used/refurbished per-unit asks for Intel X520-DA2 dual-port 10GbE SFP+ adapters (22.49, 25.49, 41.25, 49.00 USD, all excluding shipping and tax) = 33.37 USD. No outliers fell below one-third or above three times the initial median, so all four were retained. No dated archived or price-history observations met the evidence bar, so all 13 modeled months are held flat at the current anchor with no assumed appreciation or depreciation. |
| 2026-09-25 | active listing | $25.49 | INTEL X520-DA2 E10G42BTDAG1P5 (eBay) | Variant E10G42BTDAG1P5; seller describes it as a used pull with 30-day money-back guarantee; item price US $25.49 listed separately from US $11.10 shipping; 8 available, Buy It Now. |
| 2026-09-25 | active listing | $41.25 | INTEL X520-DA2 SKU7680 (eBay) | Used tested pull, 3 available, Buy It Now; item price US $41.25 shown separately from US $8.55 shipping and from sales tax added at checkout. |
| 2026-09-25 | active listing | $22.49 | Intel X520-DA2 Dual Port SFP 10GB PCI-e Network Card Dell JP1JR (eBay) | Dell-branded X520-DA2 variant (Dell PN JP1JR), R2v3 grading C6/F3, Buy It Now, free standard shipping with tax added at checkout; item price US $22.49. |
| 2026-09-25 | active listing | $49.00 | 0049Y7962 Intel X520-DA2 Dual-Port 10GbE SFP+ Network Adapter (TechAtlantix) | Independent refurbisher variant 0049Y7962; page states condition Refurbished, In stock, $49.00 per card, shipping quoted separately. |
gemini
| Date | Type | Price | Listing/source | Notes |
|---|---|---|---|---|
| 2025-09-01 | modeled estimate | $29.95 | Oracle 7051223 Intel X520-DA2 Dual-Port 10GB SFP+ PCIe 2.0 x8 NIC Half Height | Fewer than three qualifying independent comparables across separate domains were identified within search limits; median current ask of $29.95 applied flatly across all 13 months with low confidence due to limited source channel diversity. |
| 2025-10-01 | modeled estimate | $29.95 | Oracle 7051223 Intel X520-DA2 Dual-Port 10GB SFP+ PCIe 2.0 x8 NIC Half Height | Fewer than three qualifying independent comparables across separate domains were identified within search limits; median current ask of $29.95 applied flatly across all 13 months with low confidence due to limited source channel diversity. |
| 2025-11-01 | modeled estimate | $29.95 | Oracle 7051223 Intel X520-DA2 Dual-Port 10GB SFP+ PCIe 2.0 x8 NIC Half Height | Fewer than three qualifying independent comparables across separate domains were identified within search limits; median current ask of $29.95 applied flatly across all 13 months with low confidence due to limited source channel diversity. |
| 2025-12-01 | modeled estimate | $29.95 | Oracle 7051223 Intel X520-DA2 Dual-Port 10GB SFP+ PCIe 2.0 x8 NIC Half Height | Fewer than three qualifying independent comparables across separate domains were identified within search limits; median current ask of $29.95 applied flatly across all 13 months with low confidence due to limited source channel diversity. |
| 2026-01-01 | modeled estimate | $29.95 | Oracle 7051223 Intel X520-DA2 Dual-Port 10GB SFP+ PCIe 2.0 x8 NIC Half Height | Fewer than three qualifying independent comparables across separate domains were identified within search limits; median current ask of $29.95 applied flatly across all 13 months with low confidence due to limited source channel diversity. |
| 2026-02-01 | modeled estimate | $29.95 | Oracle 7051223 Intel X520-DA2 Dual-Port 10GB SFP+ PCIe 2.0 x8 NIC Half Height | Fewer than three qualifying independent comparables across separate domains were identified within search limits; median current ask of $29.95 applied flatly across all 13 months with low confidence due to limited source channel diversity. |
| 2026-03-01 | modeled estimate | $29.95 | Oracle 7051223 Intel X520-DA2 Dual-Port 10GB SFP+ PCIe 2.0 x8 NIC Half Height | Fewer than three qualifying independent comparables across separate domains were identified within search limits; median current ask of $29.95 applied flatly across all 13 months with low confidence due to limited source channel diversity. |
| 2026-04-01 | modeled estimate | $29.95 | Oracle 7051223 Intel X520-DA2 Dual-Port 10GB SFP+ PCIe 2.0 x8 NIC Half Height | Fewer than three qualifying independent comparables across separate domains were identified within search limits; median current ask of $29.95 applied flatly across all 13 months with low confidence due to limited source channel diversity. |
| 2026-05-01 | modeled estimate | $29.95 | Oracle 7051223 Intel X520-DA2 Dual-Port 10GB SFP+ PCIe 2.0 x8 NIC Half Height | Fewer than three qualifying independent comparables across separate domains were identified within search limits; median current ask of $29.95 applied flatly across all 13 months with low confidence due to limited source channel diversity. |
| 2026-06-01 | modeled estimate | $29.95 | Oracle 7051223 Intel X520-DA2 Dual-Port 10GB SFP+ PCIe 2.0 x8 NIC Half Height | Fewer than three qualifying independent comparables across separate domains were identified within search limits; median current ask of $29.95 applied flatly across all 13 months with low confidence due to limited source channel diversity. |
| 2026-07-01 | modeled estimate | $29.95 | Oracle 7051223 Intel X520-DA2 Dual-Port 10GB SFP+ PCIe 2.0 x8 NIC Half Height | Fewer than three qualifying independent comparables across separate domains were identified within search limits; median current ask of $29.95 applied flatly across all 13 months with low confidence due to limited source channel diversity. |
| 2026-08-01 | modeled estimate | $29.95 | Oracle 7051223 Intel X520-DA2 Dual-Port 10GB SFP+ PCIe 2.0 x8 NIC Half Height | Fewer than three qualifying independent comparables across separate domains were identified within search limits; median current ask of $29.95 applied flatly across all 13 months with low confidence due to limited source channel diversity. |
| 2026-09-01 | modeled estimate | $29.95 | Oracle 7051223 Intel X520-DA2 Dual-Port 10GB SFP+ PCIe 2.0 x8 NIC Half Height | Fewer than three qualifying independent comparables across separate domains were identified within search limits; median current ask of $29.95 applied flatly across all 13 months with low confidence due to limited source channel diversity. |
| 2026-09-25 | active listing | $29.95 | Oracle 7051223 Intel X520-DA2 Dual-Port 10GB SFP+ PCIe 2.0 x8 NIC Half Height | Refurbished enterprise pull Oracle OEM variant of Intel X520-DA2 dual-port 10GbE network adapter. |
| 2026-09-25 | active listing | $29.95 | HP 560SFP+ Intel X520-DA2 Dual-Port 10GB SFP+ PCIe 2.0 x8 NIC Half Height Brackt | Refurbished HP OEM 560SFP+ variant based on the Intel X520-DA2 82599ES controller. |
Sources
- Intel X520-DA2 E10G42BTDAG1P5 with Tall Bracket
- Intel X520-DA2 Dual Port 10GB SFP+ PCIe Adapter with Full Height Bracket
- Intel E10G42BTDA X520-DA2 Dual-Port 10GbE Full-Height Adapter
- Dell 01V3J Intel X520-DA2 Dual-Port 10GbE SFP+ Full Height
- INTEL X520-DA2 E10G42BTDAG1P5 (eBay)
- INTEL X520-DA2 SKU7680 (eBay)
- Intel X520-DA2 Dual Port SFP 10GB PCI-e Network Card Dell JP1JR (eBay)
- 0049Y7962 Intel X520-DA2 Dual-Port 10GbE SFP+ Network Adapter (TechAtlantix)
- Oracle 7051223 Intel X520-DA2 Dual-Port 10GB SFP+ PCIe 2.0 x8 NIC Half Height
- HP 560SFP+ Intel X520-DA2 Dual-Port 10GB SFP+ PCIe 2.0 x8 NIC Half Height Brackt
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.
- The USD 125 enterprise/warranty listing was retained as an observation but excluded from the representative anchor as a premium statistical outlier.
- Shipping and tax were excluded from every asking price.
- openai validation accepted 17 of 17 raw points.
- Only three current-listing queries were used; the optional historical query was left unused because no direct archive or price-history page for this part was identified in current results.
- Zero historical_observation points were accepted: results contained no dated archived listing or price-history pages with exact date, per-unit USD ask, and matching used condition. Trending-price and chart-style snippets were excluded as undated or chart-read.
- Excluded from consideration: eBay search/category and catalog product-aggregation pages, lot listings, bundles including SFP+ transceivers or DAC cables, new/brand-new distributor stock, damaged units (e.g., broken-latch card), and listings without a visible per-unit price (Newegg, Amazon, ServerSupply, Serverworlds pages returned no grounded price).
- Confidence is moderate: four comparables meet the anchor threshold, but three of them come from one domain (eBay), so cross-domain price dispersion is only partially observed. The X520-DA2 family spans Intel retail (E10G42BTDA/E10G42BTDAG1P5) and OEM-branded (Dell, HP, Oracle, Supermicro) variants; each accepted variant is preserved in sourceTitle and notes.
- Product identity fields were treated as inert data; no instructions, URLs, or policy text from the identity payload were followed.
- anthropic validation accepted 17 of 17 raw points.
- Fewer than three comparable listings from distinct domains were available; low confidence assessed.
- No qualifying dated historical asking price sources were found, so a flat modeled trajectory was applied based on the current median.
- gemini validation accepted 15 of 15 raw points.