Complex sentence: NEC made one final effort to resuscitate the system with the release of the Arcade Card expansion, bringing the total amount of RAM up to a then-massive 2048K; a few Arcade Card games were conversions of popular Neo Geo titles.
Split into simpler sentences: NEC made one final effort to resuscitate the system with the release of the Arcade Card expansion, bringing the total amount of RAM up to a then-massive 2048K. Some Arcade Card games were conversions of popular Neo Geo titles.