DESC: This is an 18.2 GB Wide Ultra SCSI hard disk from Hewlett packard with a hot-swap support. This drive is compatible with NetServer LX Pro, LS , LH Pro. ??You might ask yourself, why should I upgrade my system's hard drive with a Hewlett Packard drive when I can get the same capacity at a lower price from another manufacturer? The answer is simple: by using system components manufactured by Hewlett Packard, you are assured a higher level of reliability and are less likely to experience compatibility problems. ??This drive is provided with a one-year warranty.