Thank you for viewing. This is a YAMAHA AST-K30 AST cartridge. It is a rare genuine cartridge compatible with Active Servo Technology, and is currently a hard-to-find model. ◆Product Contents ・YAMAHA AST-K30 Cartridge Body ※Everything in the photos is included ・Operation not confirmed (Unable to confirm due to lack of compatible equipment) ◆Recommended Points ・Genuine YAMAHA, Made in Japan ・For those who have AST-compatible equipment, for repairs, spares, or collection ・Rare item with a small number currently in circulation ◆Important (Please read carefully) ・**Sold as is (junk) due to unconfirmed operation** ・No operational guarantee, returns, or refunds ・Please purchase only if you agree with the condition ・Instant purchase OK