Card-nyeem ntawv yog ib qho interface uas siv hauv computer los nyeem thiab sau multimedia cards li mobile cia li. Kev coj ua lag luam ntawm tus nyeem ntawv nyeem tau nyeem kev ruaj ntseg ntse phaib. Daim npav nyeem ntawv feem ntau yog txuas los ntawm USB thiab tuaj yeem nkag tau cov ntawv teev lus cim cia hauv ntau hom ntawv, xws li CompactFlash thiab Secure Digital. Thaum daim card cim koom tes nrog tus nyeem ntawv tsis zoo, nws siv tau ua ib qho flash disk. Tsis tas li ntawd, qee cov tshuab luam ntawv tau ua daim ntawv nyeem. Cov neeg siv tau yooj yim siv cov tshuab luam ntawv los luam tawm duab.
Qee cov ntawv nyeem tau tuaj yeem nkag tsuas siv tau ib daim npav nco xwb, lwm tus neeg tau nyeem ntau tus nyeem ntawv. Qee cov cim card tau ua tiav cov haujlwm ntawm tus nyeem ntawv. Cov neeg siv xwb yuav tsum tau muab daim ntawv cim xeeb rau hauv USB chaw nres nkoj, thiab lub computer siv tau cov ntaub ntawv hauv daim npav nco txog ntawm lub sijhawm.
Daim npav nyeem ntawv yog ua nrog cov koob yees duab digital, tab sis nws siv tsis tas rau cov koob yees duab digital, tiam sis nthuav mus rau ntau lub teb.
Tus nyeem ntawv, raws li nws lub npe siv, nws yog ib qho cuab yeej rau kev nyeem cov ntaub ntawv, tab sis nws tsis tuaj yeem txhawb kev nyeem ntawv cov ntaub ntawv, tab sis kuj txhawb kev sau cov ntaub ntawv. Nws pib lub tswv yim tsim yog tsuas yog ua rau cov kho raws ntawm cov koob yees duab cov ntaub ntawv tso tawm. Vim hais tias lub USB USB interface tsis nrov, qhov chaw nres tsheb zis ntawm cov koob yees duab tau txuas nrog lub nkoj nres ntawm lub computer. Vim tias cov ntaub ntawv sib kis ceev ntawm qhov chaw nres nkoj yog qhov tsawg heev, yog cov ntaub ntawv tau theej mus rau lub hard disk, nws yuav siv sijhawm ntau ntau. Yog li ntawd, daim card nyeem ntawv tuaj rau hauv.