A conditional access module for providing secure access to conditional access digital media content when connected to a suitable host device, the conditional access module being connectable to the host device via an elongated slot in the host device, the slot having an open end and a closed end having a Common Interface socket, the conditional access module comprising: a host interface plug at a first end for connecting to the corresponding interface socket located at the closed end of the elongated slot in the host device, the host interface plug being compatible with a Common Interface protocol; a chip card reader configured to read a removable secure element (1030, 15111) in order to authorise said secure access; and a reception frame configured to receive and at least partially enclose the chip card reader and the removable secure element (1030, 15111); the conditional access module being so dimensioned as to allow it to be inserted into the elongated slot of the host device; characterised in that: the chip card reader comprises a plug of a type which is compatible with a communication protocol which is different from the Common Interface protocol; and the reception frame is removable from the chip card reader and comprises: a socket configured to receive the plug comprised in the chip card reader; and a conversion module to convert the signals from the plug of the chip card reader to a format compatible with the Common Interface protocol, thereby providing signals to the host interface plug in a manner which is compatible with the Common Interface protocol; said host interface plug being part of the reception frame. a host interface plug at a first end for connecting to the corresponding interface socket located at the closed end of the elongated slot in the host device, the host interface plug being compatible with a Common Interface protocol; a chip card reader configured to read a removable secure element (1030, 15111) in order to authorise said secure access; and a reception frame configured to receive and at least partially enclose the chip card reader and the removable secure element (1030, 15111); the conditional access module being so dimensioned as to allow it to be inserted into the elongated slot of the host device; the chip card reader comprises a plug of a type which is compatible with a communication protocol which is different from the Common Interface protocol; and the reception frame is removable from the chip card reader and comprises: a socket configured to receive the plug comprised in the chip card reader; and a conversion module to convert the signals from the plug of the chip card reader to a format compatible with the Common Interface protocol, thereby providing signals to the host interface plug in a manner which is compatible with the Common Interface protocol; a socket configured to receive the plug comprised in the chip card reader; and a conversion module to convert the signals from the plug of the chip card reader to a format compatible with the Common Interface protocol, thereby providing signals to the host interface plug in a manner which is compatible with the Common Interface protocol; said host interface plug being part of the reception frame.