ASUS K40
5 models from 37 hardware reports. 5 take more memory.
| Model | Memory | Most seen | Upgrade | Reports |
| K40AB | 2 DDR2 SO-DIMM slots | 4 GB | Upgradable | 7 |
| K40AD | 2 DDR2 SO-DIMM slots | 4 GB | Upgradable | 3 |
| K40AF | 2 DDR2 SO-DIMM slots | 4 GB | Upgradable | 3 |
| K40IJ | 2 DDR2 SO-DIMM slots | 4 GB | Upgradable | 15 |
| K40IN | 2 SDRAM SO-DIMM slots | 4 GB | Upgradable | 9 |