A card edge connector (100) for receiving a module comprises an insulative housing (2) having a pair of side walls (28) with a module-receiving slot (21) formed therebetween and a plurality of contact-receiving cavities (29) along the slot, and a pair of end walls (26) connected to the side walls; a plurality of contacts (3) retained in the corresponding cavities and having contacting portions (31) extending into the slot for engaging with the module; an ejector (5) pivotally mounted on the housing and having a gripping portion (530) which can be deformed toward the side wall along an insertion direction of the module, and a locking portion (529) for locking with the module; and a block (6) movably mounted on the housing and connected to the ejector to eject the module out of the slot in response to an outward rotation of the ejector.