已找到区别了!
MHT2040AH
Power requirement Read/write 2.3 W (typical)
Power requirement Idle (ready) 0.85 W (typical)
Acoustic noise (at 1 metre idle) 34 dBA typical
MHV2040AH
Power requirement Read/write 1.9 W (typical)
Power requirement Idle (ready) 0.80 W (typical)
Acoustic noise (at 1 metre idle) 28 dBA typical
MHV的性能基本没有什么变化,功耗和噪音控制有一些改进。