Hypertec SNS-4GBSR-1X041RY-HY memoria 4 GB DDR3 1600 MHz (A Cisco equivalent 4 GB DDR3 SDRAM 1600 Mhz Legacy [ PC3-12800 ] Note - Hypertec CISCO equivalent memory is functionally equivalent to the CISCO product- but may demonstrate a warning message with respect to unestablishable identity- or invalid F [1Year warranty])