Seagate ST9250410AS Momentus 250GB 7200 RPM Serial ATA-300 SATA-II 7-pin 2.5 Inch Form Factor 16MB Buffer Internal Hard Drive for Laptop . The Seagate ST9250410AS Momentus 7200.4 drive delivers the highest available capacity and performance in a laptop hard drive and draw only .05 percent more power than a 5400-RPM laptop drive. Seaga