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Desktop · 1993ObsoleteRare · 65
Macintosh Quadra 840AV
M9020 · Quadra era
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Identifiers
| Order number | M9020 |
Reference
| Original price | $3,419 |
| Announced | 1993-07-29 |
| Discontinued | 1994-07-18 |
| Max supported OS | Mac OS 8.1 |
| Design era | Quadra era |
Configurations
| Colors | Platinum |
| CPU | Motorola 68040 @ 40 MHz, AT&T 3210 DSP @ 66 MHz |
| Memory | 8 MB, 16 MB, 64 MB, 128 MB (max) |
| Storage | 230 MB SCSI HDD, 500 MB SCSI HDD |
| Graphics | Built-in 24-bit video, NuBus video card |
| Operating system | System 7.1, System 7.1.1, System 7.1.2, System 7.5, System 7.5.1, System 7.5.2, System 7.5.3, System 7.5.5, Mac OS 7.6, Mac OS 7.6.1, Mac OS 8.0, Mac OS 8.1 |
| Removable media | 1.4 MB floppy (FDHD), CD-ROM |
Physical
| Ports & connectivity | ADB (2) · DB-25 SCSI · 2× RS-422 Mini-DIN-8 serial · 3.5mm audio in · 3.5mm audio out · AAUI Ethernet · 3× NuBus slots · PDS |
| Dimensions (W×H×D) | 368 × 368 × 216 mm |
| Weight | 11.3 kg |
Known quirks
- Only Mac with full-speed 40 MHz 68040 and onboard DSP chips (AV features)
- GeoPort telecom + video in/out via S-video — ahead of its time
- DSP AT&T 3210 runs hot — thermal issues not uncommon
- PRAM battery leak can kill logic board
- Fast machine for its era but buggy AV drivers in System 7.1