1TB 2.5" Laptop Hard Drive for HP Pavilion DV7-4174CA, DV7-4177CA, DV7-4177NR, DV7-4178CA, DV7-4178NR, DV7-4179NR, DV7-4180US Interface: SATA, Capacity: 1000GB, RPM: 5400RPM, Cache: 8MB, Speed: 3.0Gb/s to 6.0Gb/s Laptop Hard Drive Package Include: Brand NEW Major Brand 1TB 5400RPM Laptop Hard Disk Drive This Product Has 3 Year Manufacturer Warranty And 30 Days Money Back Guarantee. Major Brand: WD, Seagate, Tosbhia, Hitachi, etc.