>>530 ＆ >>激安スレ845
とりあえず
https://item.rakuten.co.jp/shop-inverse/72sh0121806/?s-id=bk_pc_item_list_name_n
　仕様　https://www.lenovo.com/jp/ja/static/catalog/nb-2013-w540_cf_1203

あとは新品との天秤だね