| Zorro II: | None | |
| Zorro III: | 4 | (1 is reserved for bridgeboard) |
| ISA: | None | |
| PCI: | 5 | (Active, 2.1 compliant, 33Mhz, 1 is reserved for bridgeboard) |
| Video Slots: | 1 (inline) | (AGA type) |
| Other: | None |
Unlike the Mediator 4000D, the Mediator 4000Di is designed to be used with desktop A4000's in their original case. It replaces the original Zorro bus daughterboard. It actually comes in two sections, the first section being the actual busboard whilst the second part is the bridgeboard designed to be plugged into both a Zorro III slot and a PCI slot effectively making them active. All slots support 32bit DMA and busmastering and are capable of transferring at 132MB/sec between cards or 50MB/sec to the A4000 with 1GB address space.
At the time of writing, drivers exist for the following cards/chipsets
| Graphics Cards | Voodoo3 2000 |
| Voodoo3 2000 | |
| Voodoo 3 3000 | |
| Voodoo 4 4500 | |
| Voodoo 5 5500 | |
| ViRGE 86C325 chipset | |
| ViRGE/DX 86C375 chipset | |
| Network Cards | Compex RL2000 |
| Holtek HT80232 | |
| Holtek HT80229 | |
| KTI ET32P2 | |
| NetVin NV5000SC | |
| Realtek RTL 8029 chipset | |
| SureCom NE34 | |
| VIA 86C926 chipset | |
| Winbond 89C940F chipset | |
| Realtek RTL8139B chipset | |
| Realtek RTL 8139C chipset | |
| Realtek RTL 8139D chipset | |
| TV / Capture Cards | Brooktree BT 848A chipset |
| Brooktree BT 849A chipset | |
| Brooktree BT 878A chipset | |
| Fusion 878A chipset | |
| Fusion 879A chipset | |
| Sound Cards | CT 5880 chipset |
| ES 1370 chipset | |
| ES 1371 chipset | |
| ES 1373 chipset | |
| EV 1938 chipset | |
| Mixers | EMU10K1 chipset |
| EMU10K2 chipset | |
| ForteMedia 801 chipset | |
| USB Cards | Spider |
| Spider II | |
| MPEG-2 / DVD Decoders | EM 8300 chipset |
| EM 8400 chipset |
For a more specific list, please see Elbox