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https://hanzama.x0.to/2020/05/26/lenovo-japan-4y40u90591-thinkpad-bluetooth-wireless-trackpoint-keyboard-japanese-with-no-nfc/
(amazon)レノボ・ジャパン 4Y40U90591 ThinkPad Bluetooth ワイヤレス・トラックポイント・キーボード-日本語(NFC搭載なし)