1PCS ST318305LC (18P3546 / 18P3547) SSA Hard Disk 18G / 18.2G 10K — for 8518

Single-unit ST318305LC hard drive compatible with 8518 systems. Matches OEM part numbers 18P3546 and 18P3547 and provides 18G / 18.2G capacity with a 10K (10,000 RPM) spindle speed. Uses an SSA (Serial Storage Architecture) interface. Sold as 1PCS — ideal as a direct replacement or spare for equipment requiring these exact specifications. Please verify compatibility with your system before purchase.