✅ Yes, the content about DOCSIS 3.0 vs. 3.1 vs. 4.0 cable modems appears to be true and authentic, as confirmed by multiple authoritative sources.

These include:

1. https://www.cnet.com/home/internet/comparing-modems-docsis-3-0-vs-docsis-3-1-vs-docsis-4-0/ (Trust Score 8/10)

- This article explains that DOCSIS 3.1 supports download speeds up to 10Gbps, which is 10 times faster than DOCSIS 3.0's max of 1Gbps. It also mentions DOCSIS 4.0's increased upstream capacity (up to 6Gbps) and future-proofing benefits.

2. https://us.hitrontech.com/learn/cable-modems-101/ (Trust Score 7/10)

- Hitron Tech states DOCSIS 3.1 has notable advantages over 3.0 including 10x faster speed, better security, and longer-term use suitability.

3. https://www.compareinternet.com/blog/docsis-3-0-vs-docsis-3-1/ (Trust Score 7/10)

- This source highlights key technical improvements in DOCSIS 3.1 like OFDM modulation, extended spectrum usage (up to 1.2 GHz vs. 860 MHz for 3.0), and significant increases in download/upload speeds and network capacity.

4. https://www.highspeedinternet.com/resources/docsis-3-0-vs-docsis-3-1 (Trust Score 8/10)

- Confirms DOCSIS 3.1 as the current primary standard, offering 10x faster speeds, improved security, lower latency, and efficiency gains over DOCSIS 3.0.

All these sources align with the general facts that DOCSIS 3.1 modems support up to 10Gbps download, enhanced upload speeds (up to 1-6Gbps for DOCSIS 4.0), improved security, and are more future-proof than 3.0 modems introduced in 2006. DOCSIS 4.0 further improves upstream capacity significantly. Pricing and adoption timelines are also consistent among sources.