There is no "official" verified version for v1.4.0.0 that is universally recognized by security vendors. Most versions found on sites like GSM Forum or AndroidFileHost are community-uploaded and should be treated with caution.
I understand you're looking for a of "eMMC Raw Tool v1.4.0.0" — a utility used for low-level reading/writing of eMMC chips (common in phone/tablet repairs, data recovery, and boot修复). emmc raw tool v1400 free download verified