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New 10 GbE USB adapters are cooler, smaller, cheaper

https://www.jeffgeerling.com/blog/2026/new-10-gbe-usb-adapters-cooler-smaller-cheaper/
92•calcifer•2h ago

Comments

userbinator•1h ago
The PCIe version: https://news.ycombinator.com/item?id=46423967
GeertJohan•1h ago
A Framework expansion card was also announced this week. https://frame.work/nl/en/products/wisdpi-10g-ethernet-expans...
topspin•1h ago
That link notes:

"Card supports 10Gbit/s and 10/100/1000/2500/5000/10000Mbit/s Ethernet"

Nice to see; some NICs are shedding 10/100 support. Apparently, it's not necessary to do this, even in a low cost device.

userbinator•55m ago
Low-cost devices are exactly where 10/100 is still widely used. On PCs, it's a common power-saving mode.
sva_•1h ago
It seems like a lot of laptop manufacturers skipped the USB 3.2 Gen2x2 in favor of USB4/TB4.
TMWNN•55m ago
Conversely, the last time I checked a couple of weeks ago, it was impossible to find any USB4 external SSDs on Amazon; only USB 3.2.
sva_•30m ago
Really? I see plenty when I search for 'usb4 nvme enclosure'
whilenot-dev•30m ago
Wouldn't it be better to just buy an M.2 NVMe adapter, eg. ICY DOCK ICYNano MB861U31-1M2B[0]?

[0]: https://global.icydock.com/product_247.html

justinclift•6m ago
That doesn't seem to be USB 4?
justinclift•7m ago
If Amazon is a strict requirement, then this won't help. But if you're ok with AliExpress then it's probably a win:

https://www.aliexpress.com/item/1005008555989592.html

I have one of these, though I'm using with a USB 3.x port as that's what my desktop has. For me it's working fine, and for others with actual USB 4 ports it seems to be working properly for them.

user34283•1h ago
I have a RTL8157 5 Gbps adapter from CableMatters.

Interestingly it seems to get burning hot on the MacBook M1 Pro while it remains cool on the M5 Pro model.

Maybe the workload is different, but I would not rule out some sort of hardware or driver difference. I only use a 1G port on my router at the moment.

deepsun•54m ago
Is it also possible to power a laptop through those adapters? PoE++ can deliver up to 100W of power, more than enough for most laptops.
eqvinox•42m ago
Theoretically yes, practically that hasn't been built yet. I've only seen it for 2.5Gbase-T, and only for 802.3bt Type 3 (51W).

If anyone's aware of something better, I'd be interested too :)

(Then again I wouldn't voluntarily use 5Gb-T or 10Gb-T anyway, and ≈50W is enough for most use cases.)

[ed.: https://www.aliexpress.us/item/3256807960919319.html ("2.5GPD2CBT-20V" variant) - actually 2.5G not 1G as I wrote initially]

Iulioh•20m ago
Eh.

A lot of laptops won't accept less than 60w

My work laptop won't accept less than 90w (A modern HP, i7 155h with a random low end GPU)

At first everyone at the office just assumed that the USB C wasn't able to charge the pc

burnt-resistor•11m ago
With 802.3bt type 4 (71W delivered, 90W consumed), absolutely achievable with the proper electronics, but would you trust a no-name, fly-by-night NIC to not fry your expensive devices? That's the biggest hurdle. Possibly a company like Apple, Anker, or similar megacorp or high-trust startup could pull if off.
eqvinox•39m ago
Too bad this is 10Gbase-T, that energy-wasting hot-running garbage needs to die sooner rather than later. Good thing the ranges for 25Gbase-T are short enough to make it impractical for home use.

(Fibre is nowhere near as "sensitive" as some people believe.)

zrm•15m ago
The problem with fibre isn't the sensitivity. It's that most endpoints have a 1Gbps copper port on them and then Cat6A ports can be used with the common devices but also allow you to add or relocate 10Gbps devices without rewiring the building again.
HappMacDonald•10m ago
However — unlike copper twisted pair — the bandwidth current fiber media can carry is nearly limited by nothing but the optics at each end.
zrm•3m ago
That doesn't solve the chicken and egg problem.

What probably would is something like having PCIe and USB to 1Gbps fiber adapters that cost $5.

shevy-java•36m ago
Will they be cheaper? I look at the RAM prices. Granted, RAM is in a different category than USB adapters, but I no longer trust anyone writing "will be cheaper" - the reality may be different to the projection made.
jordand•6m ago
For Thunderbolt 4/5 docks, I've held off from buying a high-end Thunderbolt 5 dock as many still have 2.5GbE Ethernet and other limitations with displays. The CalDigit TS5 Plus is one of the only options with 10GbE and its $500 (and usually OoS). I managed to buy an ex-corporate refurb HP Thunderbolt 4 G4 dock for only ~$64 and would recommend others do the same (this has an Intel 2.5GbE and good display outputs)
fmajid•5m ago
FWIW I got a Xikestor 10G adapter with the Realtek chipset from AliExpress and it underperforms my much cheaper 5G one.

New 10 GbE USB adapters are cooler, smaller, cheaper

https://www.jeffgeerling.com/blog/2026/new-10-gbe-usb-adapters-cooler-smaller-cheaper/
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