Realtek RTL8127 NIC
Hacker ApprovedNetwork card in Networking & smart home
Cheap, low-power 10GbE copper NIC that runs cool and does well on 10G speeds. Caveat: hardware TSO and LRO offload support is limited.
Cheap, low-power 10GbE copper NIC that runs cool and does well on 10G speeds. Caveat: hardware TSO and LRO offload support is limited.
11 people gave an opinion
- recommend it
- 10
- criticize it
- 1
- approval share
- 91%
Recommended in 4 of 13 months
- November 2025: not recommended
- December 2025: recommended
- January 2026: recommended
- February 2026: not recommended
- March 2026: not recommended
- April 2026: recommended
- May 2026: not recommended
- June 2026: recommended
- July 2026: not recommended
- August 2026: not recommended
- September 2026: not recommended
- October 2026: not recommended
- November 2026: not recommended (month in progress)
Why it carries the badge
- 10 people recommend itNeeds 10 or more, met.
- 10 recommenders for every criticNeeds 2 to 1 or better, met.
- Recommended in 4 of 13 monthsNeeds 4 or more, met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Low power and runs cool
“Realtek recently made a new 10GBASE-T NIC that consumes much less power”
Comment from 11 Jan 2026 in “My Home Fibre Network Disintegrated” “low-power 10G Ethernet chips like the RTL8127 are available”
Comment from 16 Jun 2026 in “10Gb/s Ethernet: switching to a Broadcom SFP+ module” “Runs cool, doesn't have as much contention on the chipset.”
Comment from 25 Apr 2026 in “New 10 GbE USB adapters are cooler, smaller, cheaper” - Comment from 16 Jun 2026 in “10Gb/s Ethernet: switching to a Broadcom SFP+ module”
Cheap 10GbE over copper
“Cheap, low-heat 10G copper is already here.”
Comment from 16 Jun 2026 in “10Gb/s Ethernet: switching to a Broadcom SFP+ module” “10GbE is now cool and cheap”
Comment from 11 Dec 2025 in “UniFi 5G”
What people warn about
Each mark is one comment
Limited hardware TSO and LRO offload
“Hardware CRC at least but still leaves hardware TSO and LRO to be desired”
Comment from 29 Dec 2025 in “The Arrival of Cheap 10GbE Realtek RTL8127 NIC Review” Incremental improvement over earlier chips
“suggests it's a pretty incremental improvement though”
Comment from 29 Dec 2025 in “The Arrival of Cheap 10GbE Realtek RTL8127 NIC Review”
What people said
All 11 comments that mention it, newest first. Each links to the original comment.
“New chips from Realtek burn”
“low-power 10G Ethernet chips like the RTL8127 are available”
“it does pretty good on 10G speeds”
“Cheap, low-heat 10G copper is already here.”
“Runs cool, doesn't have as much contention on the chipset.”
“Realtek recently made a new 10GBASE-T NIC that consumes much less power”
“This is going to be some very nice upgrade for those who have previously laid some decent CAT6A cables.”
“Hardware CRC at least but still leaves hardware TSO and LRO to be desired”
“suggests it's a pretty incremental improvement though”
“Nice heatsink on that puppy.”
“10GbE is now cool and cheap”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.