| Name | Zyxel 660HW-D1 Plus |
| Description | Router/Gateway, External, firewall, NAT, DHCP, 4 LAN ports |
| Type | Router/Gateway |
| Enclosure type | External |
| VoIP | No |
| Wireless LAN | Yes |
| Wireless LAN Standard | IEEE 802.11b/g/g+ |
| Max network data transfer rate | 100 Mbps Mbps |
| Max wireless data transfer rate | 125 Mbps Mbps |
| Data link protocol | Ethernet, ATM, Fast Ethernet, IEEE 802.11b, IEEE 802.11g, IEEE 802.11g+ |
| Switching protocol | Ethernet |
| Transport protocol | TCP/IP, PPTP, UDP/IP, L2TP, ICMP/IP, IPSec, PPPoE, PPPoA, AAL5 |
| Remote management protocol | SNMP, Telnet, HTTP |
| Routing protocol | RIP-1, RIP-2, IGMPv2, IGMP |
| Frequency band | 2.4GHz |
| Encryption algorithm | 128-bit WEP, 256-bit WEP, 64-bit WEP, TKIP, WPA, WPA2, WPA-PSK |
| Firewall protection | Yes |
| NAT support | Yes |
| DHCP support | Yes |
| Compliant standards | IEEE 802.1D, IEEE 802.11b, IEEE 802.11g, IEEE 802.1x |
| Integrated modem | Yes |
| Modem protocols | ITU G.992.1 (G.DMT), ITU G.992.2 (G.Lite), ITU G.994.1 (G.hs), ITU G.992.3 (G.DMT.bis), ITU G.992.4 (G.lite.bis), ITU G.992.5 |
| Digital signal protocol | ADSL Lite, ADSL, ADSL2, ADSL2+, READSL |
| Wan ports | 1 |
| LAN Ports | 4 |
| Integrated switch | Yes |
| Miscellaneous | Firewall protection, DHCP support, NAT support, ARP support, auto-uplink (auto MDI/MDI-X), Stateful Packet Inspection (SPI), DoS attack prevention, content filtering, packet filtering, MAC address filtering, VPN passthrough, Wireless g+ SuperSpeed Technology, Media Bandwidth Management (MBM), Zero Configuration Technology, Wi-Fi Multimedia (WMM) support, One Touch Intelligent Security Technology (OTIST), Multimedia Auto Provisioner (MAP) |
| Width | 18.0 cm |
| Depth | 12.8 cm |
| Height | 3.6 cm |
| Weight | 0.325 kg |
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