ARRIS SURFboard SB8200 DOCSIS 3.1 Modem - Description 1 🌐 Key features

• DOCSIS 3.1 cable modem – Supports internet plans up to 2 Gbps (requires compatible router).
• 2 × 1 Gigabit Ethernet ports – Link aggregation capable for speeds beyond 1 Gbps.
• Compatible with major cable ISPs – Xfinity (Comcast), Cox, Spectrum (check provider for plan compatibility).
• Compact design – Discrete LED indicators for power, upstream/downstream, and online status.
• Modem only – router required – For Wi‑Fi, connect a separate router to the modem.
• 2‑year limited warranty – Manufacturer coverage included.

2 📋 Specifications rothUp to 2 Gbps (depends on ISP plan)rothXfinity (Comcast), Cox, Spectrumroth12V DC (included)roth5.13" x 1.75" x 5.25"roth2‑year limited BrandARRIS ModelSURFboard SB8200 Product typeDOCSIS 3.1 cable modem (modem only) DOCSIS standardDOCSIS 3.1 (backward compatible with 3.0) Ethernet ports2 × 1 Gbps (RJ45) Max downstream data rate2 Gbps (with bonded ports or multi‑gig plan) Max upstream data rate Compatible ISPs (tested) Power supply Dimensions (LxWxH) Warranty 3 🔌 Compatible providers & activation notes ✅ Works with (cable internet only – not fiber, DSL, or satellite)

• Xfinity (Comcast) – Check device approval list
• Cox – Supports gigabit plans
• Spectrum – Approved for most plans
• Other DOCSIS 3.1 providers may work; confirm with your ISP before purchase

📦 Installation requirements

• Coaxial cable from your cable provider (screw‑on connector, not included)
• Active cable internet subscription (no phone or TV bundle if not supported)
• Power outlet (12V adapter included)
• Separate Wi‑Fi router (not included)

⚠️ Important: This is a cable modem only. It does NOT include a built‑in router or Wi‑Fi. You must have a separate router to share internet wirelessly. 4 📦 What's in the box ARRIS SURFboard SB8200 cable modem (white) Power supply (12V DC adapter) Quick start guide 2‑year warranty card *No coaxial cable, Ethernet cable, or router included. 5 🛡️ Warranty & support ✅ 2‑year limited warranty (ARRIS / Vantiva)
✅ 30‑day buyer protection – returns accepted for defects
✅ Seller support: message us for missing parts or installation questions
✅ Technical support available through ARRIS website (manuals, firmware updates) 6 🚚 Shipping & troubleshooting tips 📦 Shipping details
• Ships from USA within 1 business day
• Free ground shipping (continental US)
• Tracking provided after dispatch
• Returns accepted within 30 days – buyer pays return unless defective 🔧 LED indicators & activation steps (replaces generic maintenance)
• LED behavior (bottom to top):
- Power: Solid = power on.
- Downstream: Flashing = searching for downstream signal; Solid = locked.
- Upstream: Flashing = searching for upstream; Solid = locked.
- Online: Solid = internet ready.
- Ethernet (left/right): Flashing = data activity.
• Activation with your ISP:
1. Connect coax cable to wall outlet and modem, then connect Ethernet from modem to computer/router.
2. Power on modem. Wait for online LED (solid).
3. Call your ISP (Xfinity, Cox, Spectrum) or visit their activation website. Provide the modem’s MAC address (printed on the label).
• No internet connection:
- Ensure all coaxial connections are tight.
- Power cycle modem (unplug 30 seconds, plug back in).
- Verify that your ISP supports the modem model.
- Check that your Ethernet cable is functional.
• Slow speeds:
- Your internet plan may be lower than the modem’s capacity.
- Test with a direct Ethernet connection to a computer (bypassing router).
- For speeds above 1 Gbps, you need a router with multi‑gig WAN port and use link aggregation or a 2.5 GbE router (the SB8200 has two 1 GbE ports that can be bonded).
• Firmware updates: ISPs push firmware updates automatically; no user action required.
• Cleaning: Unplug the modem. Wipe the exterior with a soft, dry cloth. Do not use water or solvents. Keep vents clear of dust. 📌 Seller note – This is the ARRIS SURFboard SB8200 DOCSIS 3.1 cable modem. Supports internet plans up to 2 Gbps (with compatible router and provider plan). Modem only – a separate router is required for Wi‑Fi. Message us for compatibility verification or if the modem is missing any parts.