| Power Adapter | External DC power adapter |
|---|---|
| Carrier | For all major cable ISPs |
| Channels | 8 Downstream, 4 Upstream |
| Item Weight | 0.7 lb |
| Maximum LAN Data Rate | 1000 Mbps |
| Brand | Motorola |
| Number of LAN Ports | 1 |
| Product Line | SURFboard |
| DOCSIS Standard | DOCSIS 3.0 |
| Form Factor | Desktop |
| Model | SB6121 |
| Ports | Ethernet (RJ-45), Coaxial F-Connector |
| Color | Black |
| Flash Memory | 16 MB NOR Flash |
| Humidity | 10-90% non-condensing |
| MPN | SB6121 |
| Operating Temperature | 32-104°F (0-40°C) |
| Supported Protocols | SNMP v1, v2c, v3 |
| Storage Temperature | -4-158°F (-20-70°C) |
| LED Indicators | Power, Receive, Send, Online, Link |
| Item Width | 5.5 in |
| Max. Downstream Speed | 343 Mbps |
| RAM | 128 MB DDR3 |
| Security | BPI+, AES |
| Connectivity | Wired-Ethernet (RJ-45) |
| Processor | Broadcom BCM3380 |
| Certifications | FCC, UL, CableLabs |
| Item Length | 2.2 in |
| Power Consumption | 5W (typical) |
| Item Height | 5.6 in |
| Type | Cable Modem |
| Compatible Internet Service Providers | Xfinity, Spectrum, Cox, Mediacom, Cable One & more |
| Features | IPv4, IPv6 |
Check the listing for details. ARRIS SURFboard SB6183 DOCSIS 3.0 Cable Modem 16x4 686 Mbps - black. Color: Black, Condition: Used. Listed at 21.77 USD. Unlock high-speed internet with the Motorola Arris SURFboard SB6121 DOCSIS 3.0 Cable Modem. The compact design of the SB6121 makes it an unobtrusive addition to any setup.