Casio PT-31 31-Key Mini Synthesizer
keyboard
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Why this number?
The typical used price is the median of 8 used sales observed in the last 24 months, with outliers removed and the figure rounded. An observed sale is often the last asking price rather than a confirmed hammer price.
| Typical used price | €150 | median sold, rounded |
| Most sold between | €140–€160 | 25th to 75th percentile, same window |
| Window | last 24 months | the tightest of 90 days, 6 months and 24 months with 8 used sales |
| Sample | 8 used sales | thin data, treat as a rough guide |
| Time to sell | — | only counted from listings we watch start to finish; not enough yet |
| Outliers | dropped | beyond 10× the product’s own median: bundles, parts, typos |
| All-time | €110 | 29 used sales, 2020–2026; not used for deals |
| Sales on record | 29 | all-time, all platforms |
Typical prices are rounded (to 5 / 10 / 50 / 100 by size, in whichever currency you read); asks and the chart are exact. As of 20 October 2026. Full method, including what each badge means
For sale right now
The best-priced as cards, a row of them; every other ad as a line, by ask. Each ask is the seller’s own number; the platform’s mark opens the listing. Each one says when we last confirmed it at its source: the price and availability are from that visit, so check the marketplace before you go.
ReverbPrice history
Every recorded sale, one point each: 29 of them, placed by the day the ad went up. Too few sales to draw a trend through them without inventing one, so the points speak for themselves. Condition is mixed, so some of the spread is a mint against a fair rather than the market moving.
Recent sales by listing date
8 used sales · last 24 months · middle half €140–€160 · thin
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 27 Aug 2026 | €183$206 as sold | excellent |   Portugal | Reverb | Details |
| 9 Aug 2026 | €155$181 as sold | excellent | Portugal | Reverb | Details |
| 18 Feb 2026 | €134$156 as sold | good |  United Kingdom | Reverb | Details |
| 10 May 2025 | €150$175 as sold | mint | Portugal | Reverb | Details |
| 25 Mar 2025 | €109$126 as sold | good | Portugal | Reverb | Details |
A date is the day the ad went up. Marketplaces do not publish the day a sale closed; each of these had sold by the time we recorded it, in August 2026 and October 2026. A price is what the listing last asked, converted at that day’s rate.
Show all 29 recorded sales
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 14 May 2025 | €140$163 as sold | excellent | Portugal | Reverb | Details |
| 28 Mar 2025 | €302$351 as sold | excellent |  France | Reverb | Details |
| 18 Dec 2024 | €145$169 as sold | excellent | Portugal | Reverb | Details |
| 24 Apr 2024 | €135$157 as sold | very good | Portugal | Reverb | Details |
| 16 Mar 2024 | €129$151 as sold | very good | Portugal | Reverb | Details |
| 27 Feb 2024 | €77$90 as sold | very good |  Japan | Reverb | Details |
| 9 Feb 2024 | €150$175 as sold | mint | Portugal | Reverb | Details |
| 1 Feb 2024 | €135$157 as sold | excellent | Portugal | Reverb | Details |
| 14 Jan 2024 | €124$145 as sold | very good | Portugal | Reverb | Details |
| 13 Nov 2023 | €83$97 as sold | very good | France | Reverb | Details |
| 9 Nov 2023 | €89$103 as sold | good | France | Reverb | Details |
| 3 Oct 2023 | €135$157 as sold | very good | Portugal | Reverb | Details |
| 13 Sept 2023 | €135$157 as sold | very good | Portugal | Reverb | Details |
| 9 Sept 2023 | €104$121 as sold | fair |  Romania | Reverb | Details |
| 10 Jul 2023 | €78$91 as sold | mint |  Netherlands | Reverb | Details |
| 31 Jan 2023 | €99$115 as sold | excellent |  Spain | Reverb | Details |
| 24 Jan 2023 | €94$109 as sold | excellent | Spain | Reverb | Details |
| 30 May 2022 | €99$115 as sold | good | Netherlands | Reverb | Details |
| 17 Jan 2022 | €47$55 as sold | very good |  United States | Reverb | Details |
| 10 Dec 2021 | €77$90 as sold | very good |  Serbia | Reverb | Details |
| 15 Feb 2021 | €85$99 as sold | good | Spain | Reverb | Details |
| 8 Dec 2020 | €89$100 as sold | good | Spain | Reverb | Details |
| 8 Dec 2020 | €103$120 as sold | excellent | United States | Reverb | Details |
| 26 Jul 2020 | €85$96 as sold | good | Spain | Reverb | Details |
A date is the day the ad went up. Marketplaces do not publish the day a sale closed; each of these had sold by the time we recorded it, in August 2026 and October 2026. A price is what the listing last asked, converted at that day’s rate.
Cheapest live: Portugal €149 · before shipping
In one paragraph
The page's figures as one paragraph, assembled for quoting; not written by hand.
The Casio PT-31 31-Key Mini Synthesizer sold for a median of €150 over the last 24 months across 8 recorded sales, with most examples landing between €140 and €160. There is 1 listing live right now across Reverb, from €149 asking. Figures computed 20 October 2026 by Doirado from cross-platform listing data.