Comparison of modular formats
| Manufacturer | Model | Connector | Height | Smallest width | Power |
| Moog | 900 | 1/4" Phone | 8.75" (5U) | 2.125" | +12,-6 |
| Synthesizers.com | Q | 1/4" Phone | 8.75" (5U) | 2.125" | +15,-15,+5 |
| Encore | Modular | 1/4" Phone | 8.75" (5U) | 1.75" (1U) | +15,-15 |
| Synthesis Tech | MOTM | 1/4" Phone | 8.75" (5U) | 1.75" (1U) | +15,-15 |
| Modcan | B Series | 1/4" Phone | 8.75" (5U) | 1.75" (1U) | +15,-15,+5 |
| Metasonix | TM | 1/4" Phone | 8.75" (5U) | 4.5" | 12VAC |
| PPG | 300 | 1/4" Phone | 220mm (5U) | 110mm | +12,-12 |
| Roland | 700 | 1/4" Phone | 11" | 2.56" | +15,-15,+14.4 |
| Polyfusion | 2000 | 1/4" Phone | 7" (4U) | 3" | +15,-15 |
| EMU | 2000 | 1/4" Phone | 6" | 3" | +15,-15,+5 |
| Technosaurus | Selector | 1/4" Phone | 15.75" (9U) | 1.6" | +18,-18 |
| KB Elec. | Wavemakers | 1/4" Phone | 10" | 2" | +12,-12 |
| CMS | Modular | 3.5mm Phone | 10.3" | 3" | +15,-15 |
| Wiard | Modular | 3.5mm Phone | 10.5" (6U) | 2.83" | +15,-15 |
| Roland | 100M | 3.5mm Phone | 230mm | 104mm | +15,-15,+22 |
| Analogue Solutions | Concussor | 3.5mm Phone | 128.5mm (3U) | 20mm (4HP) | +12,-12,+5 |
| Analogue Systems | RS Integrator | 3.5mm Phone | 128.5mm (3U) | 30mm (6HP) | +12,-12,+5 |
| Doepfer | A-100 | 3.5mm Phone | 128.5mm (3U) | 20mm (4HP) | +12,-12,+5 |
| Blacet | Modular | 3.5mm Phone | 5.25" (3U) | 3" | +15,-15 |
| Paia | 9700 | 3.5mm Phone | 5.25" (3U) | 1.5" | +18,-18 |
| Arp | 2500 | 3.5mm Phone | 8" | 3" | +15,-15,+12 |
| Digisound | 80 | 3.5mm Phone | 9" | 3" | +15,-15,+5 |
| Aries | 300 | 3.5mm Phone | 9" | 3" | +15,-15,+5 |
| Modcan | A Series | Banana | 9" | 2.25" | +15,-15,+5 |
| Cynthia | A Series | Banana | 9" | 2.25" | +15,-15,+5 |
| Buchla | 100/200 | Banana & 3.5mm | 7" (4U) | 4.25" | +15,-15,+5, +12,+24 |
| Serge | Modular | Banana | 7" (4U) | 17" | +12,-12 |
| Synton | 3000 | Banana | 5.25" (3U) | 41mm | +15,-15 |