ASRock Wolfdale1333-D667 ASRock Wolfdale1333-D667 R2.0 LGA 775 for Intel® Dual Core Core™ 2 Extreme / Core™ 2 Duo / Pentium® Dual Core / Celeron, supporting Dual Core Wolfdale processors Intel® 945GC A2 Chipset Compatible with all FSB1333/1066/800/533 MHz CPUs except Quad Core Supports Dual Channel DDR2 667/533 x 2 DIMM slots with max. capacity up to 4GB Intel® Graphics Media Accelerator 950, DirectX 9.0 and Max. shared memory 224MB 1 x PCI Express x16 slot Hybrid Booster - Safe Overclocking Technology Untied Overclocking : During overclocking, FSB enjoys better margin due to fixed PCIE/ PCI Buses 4 x SATA2 3.0 Gb/s connectors, 10/100 Ethernet LAN High Definition Audio ASRock 6CH I/O Plus: 6 ready-to-use USB Ports