attachable
/əˈtætʃəbl/capable of being fastened or added to something else. “a handle attachable by two bolts” synonyms: bindable, bondable.
adjective [原级] 可附上的;可连接的;可逮捕的;可没收的
Attachable keyboard drawers range from $30 to $200. 可附键盘托架价格从30美元到200美元不等。