A magazine (18) that stores a plurality of needles (56) configured to engage a medication pen (2) for medication delivery, the magazine (18) comprising a magazine housing (20) enclosing a removable array (26) having a plurality of hub chambers (22) each enclosing one of a plurality of needle hubs (50), a connector (28) in each of the plurality of huh chambers (22), each connector (28) engages one of the plurality of needle hubs (50), a plurality of peel tabs (30) each sealing one of the plurality of hub chambers (22), and an electronic indicator (62) to identify a status of the plurality of needle hubs (50), wherein the electronic indicator (62) identifies how many of the plurality of needle hubs (50) are unused.
