1GB STICK For Panasonic ToughBook Series CF-29 (DDR2) CF-29 (DDR2) CF-29L CF-29L CF-30 CF-30CW1AXS CF-52 Mk1 CF-52 Mk2 CF-73 (DDR2) CF-73 (DDR2) CF-73S (Pentium M) CF-73S (Pentium M) CF-73U (Pentium M) CF-73U (Pentium M) CF-73X (Pentium M) CF-73X (Pentium M) CF-N8H CF-Y7 F8 F8 T7 (CF-T7) T8 W7 (CF-W7) W8. SO-DIMM DDR2 NON-ECC PC2-5300 667MHz RAM Memory. Genuine A-Tech Brand. 1GB STICK SO-DIMM DDR2 NON-ECC PC2-5300 667MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For Panasonic ToughBook Series. (See Compatibility List Below)