The utility model provides a data clamping, including upper end open -ended clamp, be equipped with first mounting groove and vertical distribution's second mounting groove on the side of clamp, ann has the magnetic stripe in the first mounting groove, pacifies in the second mounting groove and takes the female sleeve, and this sleeve female connection tip has a screw rod of couple, the couple be located the sleeve outside. First mounting groove and the 2nd installation slot position in on the same side of clamp. The opening of clamp upper end is the bevel connection. The utility model provides the high facility of laying, take off and changing and the flexibility of utilities electric co. To the data card.