ECS H81 motherboards
6 boards from 19 hardware reports. 6 take more memory.
| Model | Memory | Most seen | Upgrade | Reports |
| H81H3-I | 2 DDR3 DIMM slots | 8 GB | Upgradable | 3 |
| H81H3-M3 | 2 DDR3 DIMM slots | 8 GB | Upgradable | 3 |
| H81H3-M4 | 2 DDR3 DIMM slots | 16 GB | Upgradable | 6 |
| H81H3-M7 | 2 DDR3 DIMM slots | 8 GB | Upgradable | 2 |
| H81H3-MV | 2 DDR3 DIMM slots | 8 GB | Upgradable | 2 |
| H81M-C2H | 2 DDR3 DIMM slots | 4 GB | Upgradable | 3 |