Firmware archive for the ASUS X550JX notebook motherboard, revision 2.0, with the name indicating the Intel Core i5 variant of the board.

BIOS archive for the ASUS X550JX notebook, with the name noting an Intel Core i5 configuration and a 2.0 tag, most likely the mainboard revision.

BIOS dump for the ASUS X550JX, board revision 2.1, with the Intel Management Engine region cleaned, packed as a 3.12 MB 7z.

Firmware set for the ASUS X550JX in a version marked i5 2.0, packed as a 3.45 MB ZIP containing the BIOS and the KBC, meaning the keyboard controller or EC firmware.

ZIP archive of 3.33 MB for the ASUS X550JX. The number 204 in the name most likely refers to BIOS version 204, though it could also be a board revision such as 2.04.