Software for ASA, one that pour into her head (recommendations for memory here). And remember that you can upgrade from the nearest computer store or an auction for the sale of B / C original Hynix, Samsung or Kingston.

For example, ASA5505 wants 512M DDR1 400Mhz without ECC (Error Correction Code) – bought for 200-300r checked in the old known good system unit in a group with a known good 3 pass MemTest-ohm, then trims are swapped and again 3 passes – so you will get 99% guaranteed uptime. With CompactFlash, almost the same story … Well, who in the former Soviet Union did not upgrade 7301 Router notebook’s Kingston? (for this, for a moment, you can claim the prize – a significant savings – the memory stick and standing at a little less than cisco helicopter)