LGA 1156 ports.
The HM55 motherboard supports I3, I5, or I7.1 with LGA 1156 ports. Although this motherboard supports I5 or I7, but the actual use of the most support to I5, using it to I7 is too reluctant, limiting the performance of I7. The I7 has two types of interfaces, such as 6XX and 8XX of the LGA1156. HM55 is supported. I7 There is also a LGA1366 interface, I7 9XX series, need a special motherboard.