This drive comes with a bracket and a Disk Utility Software which includes a BIOS upgrade and installtion instructions and to help setup your new hard drive. In addition, some older system BIOS will not support hard drives larger than 540MB. In this case you will need to use the Disk Utility Software that is supplied with this hard drive. High-performance and high-value solutions for mobile computing Impressive Capacity and Performance in a Mobile Drive Rotational Speed - 4200 RPM Interface - ATA66 / ATA-5 Average seek time - 12.0 ms Partial Response Maximum Likelihood (PRML) Intelligent Power Management :0.1 Watt in sleep mode. S.M.A.R.T. (Self-Monitoring Analysis and Reporting Technology) Access time Access time : 12ms Data Buffer (Cache) Data Buffer : 2MB Device Type : Internal hard drive Data Transfer Rate : 66.6MB Compression : (Native/Uncompressed) Form Factor (Drive) : 2.5-inch OS Support OS Support : Windows� 95, Windows� 98, Windows� NT, Windows 2000, Windows XP Rotational Speed : 4200 rpm Reliability Specifications: MTBF 300,000 power on hours High Shock Resistance: The drives are durable enough to withstand up to 700G non-operating shock Warranty information Warranty terms : Three year limited warranty Compatible with: ThinkPad T20 Series ThinkPad T21 Series ThinkPad T22 Series ThinkPad T23 Series ThinkPad T30 Series ThinkPad R30 Series ThinkPad R31 Series ThinkPad R32 Series ThinkPad R40 Series ThinkPad T40 Series