| Manufacturer | Zyxel |
| Manufacturer Part # | P-660M-D1 |
| Cost Central Item # | 10237486 |
| Product Description | ZyXEL Prestige 660M-D1 - DSL modem - external - Fast Ethernet |
| Device Type | DSL modem - Fast Ethernet |
| Enclosure Type | External |
| Approximate Dimensions (WxDxH) | 4.1 in x 4.2 in x 1.4 in |
| Approximate Weight | 6 oz |
| Digital Signaling Protocol | ADSL, RADSL, ADSL2, ADSL2+ |
| Protocols & Specifications | ITU G.994.1 (G.hs), ITU G.992.3 (G.DMT.bis), ITU G.992.1 (G.DMT) Annex A, ITU G.992.5 Annex M |
| Interface Type | Fast Ethernet |
| Connectivity Technology | Wired |
| Digital Signaling Protocol | ADSL, RADSL, ADSL2, ADSL2+ |
| Protocols & Specifications | ITU G.994.1 (G.hs), ITU G.992.3 (G.DMT.bis), ITU G.992.1 (G.DMT) Annex A, ITU G.992.5 Annex M |
| Interfaces | 1 x modem - ADSL2+ - RJ-11 1 x network - Ethernet 10Base-T/100Base-TX - RJ-45 |
| Min Operating Temperature | 32 °F |
| Max Operating Temperature | 104 °F |
| Humidity Range Operating | 20 - 85% |