Star Trek Starships Collection Special #29 U.S.S. Discovery NCC-1031-A Refit XL Vehicle with Collector Magazine:
After its unexpected and violent arrival in the 32nd century, the USS Discovery NCC-1031 received an extensive upgrade at the Federation's headquarters. Refitted with futuristic technology over long weeks of engineering, the ship was recommissioned – as the USS Discovery NCC-1031-A!
The Discovery's refit armed it with a cloaking device and incorporated programmable matter into each of its stations. Perhaps most noticeably, the Federation's engineers converted the Discovery's warp engines to match the detached configuration common to the 32nd century, greatly increasing its maneuverability.
This hand-painted XL model captures the Discovery-A in precise detail, just as it appeared in the third season of Star Trek: Discovery.