The 4-slot AEC-204 wallmount chassis sports one 3.5" external drive bay and one 3.5"/5.25" internal drive bays. Half-size CPU cards are supported.
| Model/Name | Description |
| 9741204000 | Accessory CD-ROM for AEC-204 |
Power Supply Options
| P/N | TYPE | PFC Support | Input Voltage | Watt | Size |
| 1757215005 | ATX | Active PFC | Auto 115/230V | 150W | 1U (40.5cm) |
| 1757930015 | ATX | Active PFC | Auto 115/230V | 300W | 1U (40.5cm) |
Passive Backplane Options
| P/N | Description | Master Interface | Slots | Power Connector, ATX Extend Function |
| BP-204SI | Wallmount, ISA, 4-slot Backplane, 4 ISA, Single Segment, AT | ISA | 0/4/0 (PCI/ ISA/ PICMG) | AT |
| BP-204SS-P1 | Wallmount, PCISA, 4-slot Backplane, 1 PCI/ 2 ISA, Single Segment, AT/ATX | PCISA | 1/2/2 (PCI/ ISA/ PISA) | AT |
| BP-204SP-P3 | Wallmount, PCI, 4-slot Backplane, 3 PCI, Single Segment, AT/ATX, Bulk Pack | PCI | 4/0/0 (PCI/ISA) | ATX, 3-pin ATX extend |
CPU Cards Options
| Model/Name | Description | Master Interface |
| HSB-800I | Onboard AMD LX 800 Processor | ISA |
| HSB-LN2I | Onboard Intel® Atom™ D525/N455 | ISA |
