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New 10 GbE USB adapters are cooler, smaller, cheaper

jeffgeerling.com

11–20 of 384 posts

Re: New 10 GbE USB adapters are cooler, smaller, cheaper

#13
post #7
post #4

It seems like a lot of laptop manufacturers skipped the USB 3.2 Gen2x2 in favor of USB4/TB4.

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.

Really? I see plenty when I search for 'usb4 nvme enclosure'

Re: New 10 GbE USB adapters are cooler, smaller, cheaper

#14
post #7
post #4

It seems like a lot of laptop manufacturers skipped the USB 3.2 Gen2x2 in favor of USB4/TB4.

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.

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

Re: New 10 GbE USB adapters are cooler, smaller, cheaper

#15
post #10
post #9

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.

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 initi…

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

Re: New 10 GbE USB adapters are cooler, smaller, cheaper

#16
post #11

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.)

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.

Re: New 10 GbE USB adapters are cooler, smaller, cheaper

#17
post #9

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.

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.

Re: New 10 GbE USB adapters are cooler, smaller, cheaper

#18
post #16
post #11

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.)

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.

However — unlike copper twisted pair — the bandwidth current fiber media can carry is nearly limited by nothing but the optics at each end.

Re: New 10 GbE USB adapters are cooler, smaller, cheaper

#19
post #7
post #4

It seems like a lot of laptop manufacturers skipped the USB 3.2 Gen2x2 in favor of USB4/TB4.

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.

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.

Re: New 10 GbE USB adapters are cooler, smaller, cheaper

#20
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)
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