When performance is your priority, rely on proven, trusted technology. With the cylindrical lithium-ion battery cell your laptop gets stable power that’s great for high-performance devices. Lithium-Ion (Li-Ion) Hard Drive HDD HP 500 550, Intel Pentium Mobile, 1.4 GHz, 15.4", 1 GB, 160 GB, Black, Gray HP 500 550. Form factor: Clamshell. Processor family: Intel Pentium Mobile, Processor model: T5270, Processor frequency: 1.4 GHz. Display diagonal: 15.4". Internal memory: 1 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 160 GB, Storage media: HDD. On-board graphics card model: Intel® GMA X3100. Product color: Black, Gray. Weight: 5.49 lbs (2.49 kg)