It should work for all items with that in the name. The thing you're likely missing due to the fact you asked here instead of looking, main = mh and sub = oh now.
EVGA Classified SR-2 | Intel Xeon X5680 x 2 | Corsair Dominator DDR3-1600 6 x 2GB
XFX HD5970 x 2 | Intel PRO/1000 NIC | ASUS Xonar DX | Corsair AX1200 | Corsair TX750
OCZ Vertex2 60GB | WD Velociraptor 300GB x 2 | Samsung Spinpoint MP4 500GB
EK-FB SR2 - Acetal+Nickel | EK-Supreme HF - Acetal x 2 | EK-FC5970 Acetal x 2
Thermochill TA120.4 x 3 | Thermochill TA120.3 | Swiftech MCP655 x 2