CPU
1st Generation Intel Dual Core i3-330M/350M/370M or i5-430M/450M/520M/540M or Quad Core i7-720QM/740QM/820QM/840QM Quad Core Extreme i7-920XM/940XM Processor
Memory Type
PC3-10660 1333MHz DDR3 204pin SO-DIMM Laptop Memory
Standard Memory
up to 8GB
Memory Expansion Slots
2 SO-DIMM slots
PC Card Slots
One ExpressCard/54 Slot (also supports ExpressCard/34)
USB Ports
Three USB v2.0 Type-A Ports (Two USB v2.0 Only Ports and One USB v2.0/eSATA Combo Port)
Firewire Ports
One 4-pin IEEE-1394 Firewire / I.Link Port
Card Reader
8-in-1 Integrated SD Card Reader Slot: (SD/SDIO/SDHC/SDHD/MS/MS-Pro/MMC/xD-Picture)
Original Optical Drives
DVD Super Multi Dual Layer Drive or Blu-Ray DVD Combo Drive
Original Hard Drives
160GB, 250GB, 320GB, 500GB 5400RPM or 7200RPM SATA II 3Gb/s Hard Drive
Original Solid State Drives
128GB, 256GB 2.5" SATA II 3Gb/s Solid State Drive
Drive Notes
The Dell Alienware M15x Laptop Supports Single Drive Configuration Only. (One 2.5" Solid State Drive or Hard Drive)