Tools like or ImgBurn are excellent for this. In ImgBurn, simply open the program, and the left-hand sidebar will display the drive model and the current firmware revision (e.g., 1.00, 1.01, etc.).
Modifying firmware carries inherent risks. Using an update intended for a different drive model (e.g., DRW-24D5MT vs. DRW-24D3ST) will almost certainly destroy the drive. Moreover, unofficial "cross-flashing" (loading firmware from a similar drive, like a Lite-On or another ASUS model) to unlock features is possible only with hacked tools and voids the warranty; if done incorrectly, it renders the drive an expensive paperweight. asus drw-24d5mt firmware