Clockwise from top: DS2251T-128 SIMM72, DS2252T-128 SIMM40, DS5000-8 DIP40, DS2250T-64 SIMM40. Secure Micro Selection Table

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Clockwise from top: DS2250T-64 SIMM40 with white vertical socket, DS2252T-128 SIMM40 with black right angle socket, and on the bottom DS2251T-128 SIMM72 with white vertical and black right angle sockets. Secure Micro Selection Table