显 = 'display / show', 卡 = 'card' (loan from English card). Literally 'display card' — the board that sends images to your monitor.
culture
During the 2020-2022 crypto-mining and scalper era, 挖矿显卡 ('mining GPUs') and 矿卡 ('mined-on cards') became household terms in Chinese tech circles, with Nvidia RTX 30-series cards selling at double MSRP.
