XOR Electronics NerdSeq TRS MIDI Expander
keyboard
Has sold for €30 over 2021–2026, across 11 used sales. Too few in the last two years for a typical price today.
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Not enough sold data for a typical price.
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.
Nothing live right now on the platforms we track.
Price history
Every recorded sale, one point each: 12 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
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 20 Jun 2026 | €27$30 as sold | excellent |  United States | Reverb | Details |
| 29 Dec 2025 | €30$35 as sold | good | United States | Reverb | Details |
| 19 Aug 2025 | €34$39 as sold | mint | United States | Reverb | Details |
| 12 Jul 2025 | €34$39 as sold | excellent |  United Kingdom | Reverb | Details |
| 28 Dec 2023 | €39$45 as sold | mint | United States | 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 Marketplaces do not publish the day a sale closed; each of these had sold by the time we recorded it, in August 2026 and October 2026.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 the last 12 of 18 recorded sales
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 19 Jan 2025 | €30$35 as sold | excellent | United States | Reverb | Details |
| 16 Jul 2024 | €31$35 as sold | excellent | United Kingdom | Reverb | Details |
| 1 Sept 2023 | €31$35 as sold | mint | United States | Reverb | Details |
| 20 Jun 2023 | €34$39 as sold | excellent | United States | Reverb | Details |
| 27 Jul 2022 | €32$36 as sold | mint | United States | Reverb | Details |
| 25 May 2021 | €26$29 as sold | mint | United States | Reverb | Details |
| 10 Apr 2021 | €36$42 as sold | new | United States | 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 Marketplaces do not publish the day a sale closed; each of these had sold by the time we recorded it, in August 2026 and October 2026.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.
11 recorded sales of the XOR Electronics NerdSeq TRS MIDI Expander from 2021–2026, all-time around €30. Too few in the last two years to quote a typical used price. Figures computed 18 October 2026.