| | Product Description
 | Year Released
 | List Price
 | Average Price
 | Pricing Trend
 | Number Tracked
 | Resale Popularity
 |  | 4-Pole Filter | 1998 | $500 | $229 |  | 33 |  |  | MicroQ |  |  | $497 |  | 397 |  |  | Microwave |  | $2,000 | $690 |  | 112 |  |  | Microwave II | 1998 | $1,300 | $489 |  | 74 |  |  | Microwave XT | 1998 | $2,000 | $675 |  | 220 |  |  | Pulse | 1996 | $650 | $383 |  | 150 |  |  | Pulse+ |  |  | $460 |  | 57 |  |  | Q Keyboard |  |  | $1,390 |  | 115 |  |  | Q Rack | 1999 | $1,600 | $847 |  | 50 |  | 
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