Add to Cart Quick view MFJ-447 Slimline Deluxe Memory Keyer as New in Box with Power Supply MFJ MSRP: Now: $74.99 Was: MFJ-447 Slimline Deluxe Memory Keyer as New in Box with Power Supply. This one has been tested and comes with the manual, a wall type power supply, and RCA to RCA cord. This is a great compact keyer which is no longer available. The MFJ-447... MSRP: Now: $74.99 Was: Add to Cart Quick view Qty in Cart: 0 Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: Now: $74.99 Was: Subtotal: Add to Cart