The R4121E23H2 is an RG series solid body electric guitar model introduced by Ibanez in mid 2018. It was made in Japan by Sugi as part of the high-end J Custom line.
The R4121E23H2 features a 4mm thick burl poplar top with natural binding on a swamp ash body bolted to a maple and purpleheart neck with satin Velvetouch finish and a maple fingerboard with pearl and abalone Tree of Life vine inlay. Components include a Lo-Pro Edge double locking tremolo bridge, dual DiMarzio Fusion Edge humbucking pickups with a mini-toggle coil split switch, recessed Easy Access control knobs, Gotoh locking strap buttons and Gotoh tuning machines.
The R3112A44L3 is a similar model with different woods used for the body and neck, a different neck profile and creme pickups. The R8414E14H6 is a similar model with an African mahogany body, ebony fretboard and Edge tremolo. The RG8520 is a somewhat similar model which is made by FujiGen Gakki.