the computer you use for pfsense 2.2
I'm afraid such question makes little sense at least until you define list of services you provide with pfSense.
"simple" FW will have very different hardware requirements than server providing VPN, proxy and anti-virus.
Same idea: 2 * 10/100Mbps links, you will not have same needs as if you are running 4 * 1Gbps + 200/200Mbps WAN
when I can buy this product Where to ensure safety
Again it depends on what you intend to do.
You have to understand that pfSense can provide things as simple (and light) as "FW / router" but also potentially as heavy as "FW / router + VPN + Squid + antiv-irus + Snort"
Because of this, such hardware may fit… or not.
For basic firewaling and even a bit more, this is more than enough.
VPN might not be that efficient without AES-ni support.
EDIT: sorry, I forgot to add that Realtek NIC is perhaps not the best choice :-X
I see a good product on
What do you think
I think you will have better luck in forum with your native language.. You see a good product where?
pfsense will pretty much run on anything here is some min requirements