Astaro’s new Web Gateway appliances are aimed at businesses that already have firewall and IPS solutions in place, and just want to add web content filtering at the gateway. The top-of-the-range AWG4000 is a good quality, if somewhat noisy, all-Supermicro affair of a 1U chassis and motherboard, offering a decent hardware specification. You get a 2.4GHz Xeon X3220 quad-core processor, partnered by 2GB of memory, and a 3Ware SATA PCI RAID controller card for storage.