For sale is a bundle of two cable modems, sold together as shown in the photos.
Included: • Arris CM820A / NA – DOCSIS 3.0 Cable Modem • Motorola Surfboard SB5101U – DOCSIS 2.0 Cable Modem • Power adapters included • Coax cables included (as shown)
Condition: • Both units power on and show normal indicator lights • Tested for power and basic functionality • Units have normal cosmetic wear (see photos)
Important Compatibility Notice:
These are legacy cable modems. They may NOT be supported or activated by modern cable ISPs such as Xfinity, Spectrum, Cox, etc.
✔️ Ideal for: • Labs and testing environments • Legacy systems • Learning / educational use • Collectors or backup equipment
❗ Buyer is responsible for confirming compatibility with their cable provider before purchasing.
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⚠️ Terms & Disclosure • Sold AS-IS, no returns • Please review all photos carefully and ask any questions before buying • Serial numbers are recorded and protected for security purposes
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🚚 Shipping Policy • Fast shipping within the United States • Ships via USPS or UPS (seller’s choice) • No APO/FPO addresses • No freight forwarders • Item will be packed securely to prevent damage during transit
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📸 Photos
You will receive the exact items shown in the pictures.