rapidship929 Store TOSHIBA STRATA DK CTX KCDU1A 2X4 EXPANSION CARD KCDU YOU ARE looking ON A TOSHIBA KCDU1A 2X4 EXPANSION CARD THIS CARD WILL WORK IN SOME DK & CTX TOSHIBA PHONE SYSTEMS.TESTED AND WORKING GOOD!3 AVAILABLE![!brand:toshiba!][!mpn: DK CTX KCDU1A!]