31–40 of 384 posts
Earlier quoted context omitted.
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.
Low-cost devices are exactly where 10/100 is still widely used. On PCs, it's a common power-saving mode.
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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
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.
https://hackaday.com/2023/08/14/adding-power-over-ethernet-s...
Earlier quoted context omitted.
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
Earlier quoted context omitted.
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
I gotta say, I love my macbooks. Every Apple laptop I've owned that has USB-C ports will happily charge itself from a 5V/1.5A wall charger (albeit extremely slowly).
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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
Great. So we got EU laws to mandate USB-C chargers and then get manufacturers that flaunt the spirit of the law by rejecting lower wattages.
When plugged into 100W chargers while powered on, it takes ten minutes to gain a single percentage point. Idle in power save may let me charge the thing in a few hours. If I start playing video, the battery slowly drains.
If your laptop is part space heater, like most laptops with Nvidia GPUs in them seem to be, using a low power adapter like that is pretty useless.
Also, 100W chargers are what, 25 euros these days? An OEM charger costs about 120 so the USB-C plan still works out.
Other manufacturers do similar things. Apple accepts lower wattage chargers (because that's what they sell themselves) but they ignore two power negotiation standards and only supports the very latest, which isn't in many affordable chargers, limiting the fast charge capacity for third parties.
Earlier quoted context omitted.
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.
Low-cost devices are exactly where 10/100 is still widely used. On PCs, it's a common power-saving mode.
A Framework expansion card was also announced this week. https://frame.work/nl/en/products/wisdpi-10g-ethernet-expans...
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.
Earlier quoted context omitted.
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.
In practice though 10G via copper requires pretty perfect terminations. The slightest error leads to crosstalk issues.
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.