Synchrotech SRAM PCMCIA Memory PC Cards Replaceable Battery - flash memory card - 4 MB - PC Card

Synchrotech's PC Cards are designed with the dual backup battery system featuring a replaceable but non-rechargeable battery and an on-board rechargeable but non-replaceable battery for data retention. This design allows replacement of primary battery without data loss. The card's rigid stainless-steel and plastic construction withstands harsh environmental conditions.