# TLDR Review: TRENDnet TMO-311C Ethernet Over Coax Adapter

*Published: 2026-05-12 | Updated: 2026-05-12 | Source: https://shopsavvy.com/reviews-tldr/trendnet-tmo-311c-ethernet-over-coax-adapter*

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## Product: TRENDnet TMO-311C Ethernet Over Coax Adapter
**Brand:** TRENDnet

## Pros
- Supports high-speed network throughput up to 1Gbps, suitable for streaming and gaming
- Compatible with MoCA 2.0, making it versatile for existing coax wiring setups
- Backward compatible with older MoCA standards, expanding its usability
- Can connect up to 16 nodes on one network, ideal for larger home setups
- Features a Gigabit LAN port for fast wired connections
- Compact, black design that easily blends into home environments
- Easy to install and set up, according to user feedback
- No noticeable lag or disconnect issues reported by most users
- Reliable performance for transferring data over coax cables
- Useful for extending wired network where Wi-Fi signals are weak

## Cons
- Some reviews mention that the assembly instructions could be clearer
- A few users experienced minor connectivity issues with certain coax wiring setups
- No additional features like Wi-Fi support, limiting versatility
- Slightly more expensive than some competing adapters without gigabit ports
- Not compatible with non-MoCA coax networks without additional equipment
- Limited to 16 nodes, which might not be enough for very large networks
- No mention of surge protection or weather resistance—intended for indoor use only
- Some users reported occasional drops in speed under heavy usage
- Does not support Power over Coax (PoC) or power feeding over coax
- May require a coax splitter if multiple devices are connected

## Bottom Line

If you're aiming to turn your existing coax wiring into a high-speed, reliable Ethernet network, the TRENDnet TMO-311C offers solid performance with support for up to 1Gbps and compatible with MoCA 2.0. It's a good choice for larger homes or setups needing multiple network nodes, but keep in mind it’s primarily for indoor use and may face minor connectivity hiccups depending on your wiring. If you want a more versatile solution with Wi-Fi bridging, you might need to look at other devices, but for a straightforward coax-to-Ethernet upgrade, this adapter does the job well.

## Pros vs Cons at a Glance

| Pros | Cons |
|------|------|
| Supports high-speed network throughput up to 1Gbps, suitable for streaming and gaming | Some reviews mention that the assembly instructions could be clearer |
| Compatible with MoCA 2.0, making it versatile for existing coax wiring setups | A few users experienced minor connectivity issues with certain coax wiring setups |
| Backward compatible with older MoCA standards, expanding its usability | No additional features like Wi-Fi support, limiting versatility |
| Can connect up to 16 nodes on one network, ideal for larger home setups | Slightly more expensive than some competing adapters without gigabit ports |
| Features a Gigabit LAN port for fast wired connections | Not compatible with non-MoCA coax networks without additional equipment |
| Compact, black design that easily blends into home environments | Limited to 16 nodes, which might not be enough for very large networks |
| Easy to install and set up, according to user feedback | No mention of surge protection or weather resistance—intended for indoor use only |
| No noticeable lag or disconnect issues reported by most users | Some users reported occasional drops in speed under heavy usage |
| Reliable performance for transferring data over coax cables | Does not support Power over Coax (PoC) or power feeding over coax |
| Useful for extending wired network where Wi-Fi signals are weak | May require a coax splitter if multiple devices are connected |

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*About this review: We pulled together findings from professional and user reviews, and cross-referenced them with ShopSavvy's pricing data from thousands of retailers to give you the short version.*