# Realtek RTL8127 NIC

10 Hacker News commenters recommended Realtek RTL8127 NIC and 1 criticized it, November 2025 to November 2026. It was recommended in 4 of 13 months. It meets the Hacker Approved badge rule.

**Verdict:** Cheap, low-power 10GbE copper NIC that runs cool and does well on 10G speeds. Caveat: hardware TSO and LRO offload support is limited.

## Why people recommend it

- Low power and runs cool (4 comments): "Realtek recently made a new 10GBASE-T NIC that consumes much less power" ([source](https://news.ycombinator.com/item?id=46573686)) "low-power 10G Ethernet chips like the RTL8127 are available" ([source](https://news.ycombinator.com/item?id=48561135)) "Runs cool, doesn't have as much contention on the chipset." ([source](https://news.ycombinator.com/item?id=47901443))
- Cheap 10GbE over copper (2 comments): "Cheap, low-heat 10G copper is already here." ([source](https://news.ycombinator.com/item?id=48560484)) "10GbE is now cool and cheap" ([source](https://news.ycombinator.com/item?id=46229641))

## What people warn about

- Limited hardware TSO and LRO offload (1 comments): "Hardware CRC at least but still leaves hardware TSO and LRO to be desired" ([source](https://news.ycombinator.com/item?id=46426855))
- Incremental improvement over earlier chips (1 comments): "suggests it's a pretty incremental improvement though" ([source](https://news.ycombinator.com/item?id=46426121))

## Where to get it

- [See price on Amazon](https://www.amazon.com/s?k=Realtek+RTL8127+10GbE+NIC&tag=hackerapprove-20) (affiliate link)

## Cite as

Hacker Approved, "Realtek RTL8127 NIC", https://hackerapproved.com/p/realtek-rtl8127-10gbe-nic/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).