Compatible with Time Warner Cable, Charter, Cox, Cablevision, and more
Not compatible with Verizon FiOS or AT&T U-verse, no longer approved by Comcast Xfinity
Requires Cable Iternet Service, if not sure your provider is CABLE call them to confirm
BROWN BOX models NOT VALID for this item when sold as New, should report to Amazon immediately and RETURN to Seller
Wired modem only, does NOT include WIFI Router or VOIP Telephone adapter. Gigabit Ethernet port to connect to computer or Router for fast downloads.
Internet speeds based on your Cable providers service – up to 172 Mbps download and 131 Mbps upload. 4 Download and 4 Upload Channels.
ARRIS Surfboard DOCSIS 3.0 Cable Modem (SB6121) Time Warner Cable.
Amazon.com Price: $20.00 – $81.81 (as of 02/06/2019 07:54 PST- Details) Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.
Compatible with Time Warner Cable, Charter, Cox, Cablevision, and more
Not compatible with Verizon FiOS or AT&T U-verse, no longer approved by Comcast Xfinity
Requires Cable Iternet Service, if not sure your provider is CABLE call them to confirm
| Style | 4X4 Cable Modem, 8X4 Cable Modem, 8X4 Cable Modem – AC1600 WiFi Router, 8X4 Cable Modem – AC1750 WiFi Router |
|---|---|
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.
Accessories & Supplies
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.
Accessories & Supplies
Coupons available for this offer
View more coupons- Add all products described in the promotion to your Shopping Cart in one of two ways:
- Via the “Add both to Cart” button in the promotion description, OR
- Via the “Add to Shopping Cart” button on each respective product information page.
- The amount of the Best Value discount will be reflected on the final order checkout page and will be allocated proportionally to all promotion items in the Shopping Cart, including the Best Value item itself. For example, if the promotion offers $5 off one item worth $10 when you purchase two qualifying items worth $20 each, the $5 will be divided proportionately between the three items, so that the Best Value item will appear with a $1 discount, and each of the two other qualifying items will appear with a $2 discount.
- The promotion is valid for a limited time only. Amazon reserves the right to cancel it at any time.
- If you do not purchase the qualifying and Best Value items added to your Shopping Cart when the promotion is in effect, the discount will not apply.
- The promotion applies only to qualifying items displaying the offer message on their product information pages.
- The promotion applies only to products sold by the seller indicated in the offer message. It does not apply to the same products sold by other sellers. For example, if the promotion applies to cookware offered by Amazon.com, the same cookware offered by other sellers on the Amazon.com website (e.g. Macy’s, etc.) do not qualify.
- Unless the promotion indicates otherwise, it applies to the lowest priced qualifying item and may not be combined with other offers.
- All qualifying and Best Value items must be purchased in one order and shipped to a single address.
- If you return any of the promotion items, we will subtract your Best Value discount from your return credit.
- Shipping and handling charges apply to all products, including Best Value items.
- Add-on Items require a minimum purchase. See amazon.com/addon for details.
- This promotion may not be combined with other offers, including promotional certificates.
- Does not apply to orders placed with 1-Click.
- Offer good while supplies last.
- Void where prohibited.
- If you remove any of the promotion items from your Shopping Cart or violate any of the Terms and Conditions, the promotion will be invalid, and the discount will not apply.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.
Accessories & Supplies
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.
Accessories & Supplies
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.
Accessories & Supplies
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.
Accessories & Supplies
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.
Accessories & Supplies
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.

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