The ML194V-0 is not a single retail product but rather a design standard used across various OEM brands, most notably Acer, Gateway, and Packard Bell.
If you are repairing a laptop, you cannot just look for "ML194V-0," as this exists on many different boards. You must identify the specific or OEM model number printed on a white sticker on the motherboard itself (e.g., a 5-digit or alphanumeric code). Common Compatibility: foxconn ml194v0 laptop motherboard