Realtek 10 GbE USB Adapters might be on the way?

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blunden

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Nov 29, 2019
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Why doesn't anyone make a PCI-E 4.0 version with an SFP+ slot? Is it really that hard? Seems kind of weird to me.
 
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SlowmoDK

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Oct 4, 2023
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Why doesn't anyone make a PCI-E 4.0 version with an SFP+ slot? Is it really that hard? Seems kind of weird to me.
My guess, is that the installed base of MB's with an x4 gen3 slot is much greater than x1 gen 4

Since we have already seen the design for gen4 based cards, just not for sale
 

SlowmoDK

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Oct 4, 2023
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SFP card says WOL not supported needs confirming
The Realtek windows driver includes all the settings and knobs for WOL, I haven't tested but why should they be there if function is not implemented in HW.

I suspect it works just fine :p
 

blunden

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Nov 29, 2019
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My guess, is that the installed base of MB's with an x4 gen3 slot is much greater than x1 gen 4

Since we have already seen the design for gen4 based cards, just not for sale
Yes, I'm sure. However, they could make it PCI-E 4.0 x4 physically so that people with PCI-E 4.0 can take full advantage of it with just one lane. Lots of motherboards have open ended slots, so it would increase the potential customer base. Now that's not even an option. :(

As far as I'm aware, there exists an x2 slot but it's rare to see on motherboards in practice. That's why manufacturers usually go for x4 instead.
 

ms264556

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blunden

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Shonk

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Nov 25, 2016
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Shenzhen MMUI Co.Ltd (MAC address registered to them also who i ordered from IOCREST parent company)
RTL8127ATF PCIE 3.0x2 SFP+
Realtek UEFI UNDI Option Rom 2.0.77 25/12/24
Hardware ID: PCI\VEN_10EC&DEV_8127&SUBSYS_012310EC&REV_08

Guangdong Taiying Technology Co.,Ltd (DIEWU)
RTL8127ATF PCIE 3.0x2 SFP+
Realtek UEFI UNDI Option Rom 2.0.75 2025/09/10
Hardware ID: PCI\VEN_10EC&DEV_8127&SUBSYS_012310EC&REV_08

Shenzhen MMUI Co.Ltd
(MAC address registered to them also who i ordered from IOCREST parent company)
RTL8127 PCIE 4.0x1
Realtek UEFI UNDI Option Rom 2.0.74 2025/07/01
Hardware ID: PCI\VEN_10EC&DEV_8127&SUBSYS_012310EC&REV_07

Guangdong Taiying Technology Co.,Ltd (DIEWU)
RTL8127AT PCIE 3.0x2
Realtek UEFI UNDI Option Rom 2.0.73 2025/03/24
Hardware ID: PCI\VEN_10EC&DEV_8127&SUBSYS_012310EC&REV_07

Guangdong Taiying Technology Co.,Ltd (DIEWU)
RTL8127 PCIE 4.0x1
Realtek UEFI UNDI Option Rom 2.0.73 2025/03/24
Hardware ID: PCI\VEN_10EC&DEV_8127&SUBSYS_012310EC&REV_05


RTL8127ATF PCIE 3.0x2 - RTL9313+RTL8264B - RTL8127AT PCIE 3.0x2
1.png

RTL8127ATF PCIE 3.0x2 SFP+
260122041108.jpg

RTL8127ATF PCIE 3.0x2 SFP+
2.png
 
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Greg_E

Active Member
Oct 10, 2024
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What do those 5g cards need? Pcie 3 and one lane? I only have Pcie 2 in my lab machines, so 2.5g cards in there.
 

Jelle458

Member
Oct 4, 2022
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I finally got my 10G to work in my house. An electrician did the RJ45 wiring wrong so I had issues with 100Mbps and the connection kept going in and out.

Now that it's running, I didn't get much of a boost. I got the XikeStor adapter, and I am using a USB-C 20Gbps connection. The network card is now seen, and it now gives me 10G visible in Windows (before 100mbps):

Code:
Samlet forbindelseshastighed (modtagelse/afsendelse):    10/10 (Gbps)
Link til lokal IPv6-adresse:    fe80::40aa:968e:1ed5:8059%19
IPv4-adresse:  
IPv4-standardgateway:  
IPv4-DNS-servere:  
Primært DNS-suffiks:    localdomain
Producent:    Realtek
Beskrivelse:    Realtek USB 10GbE Family Controller
Driverversion:    11.19.602.2025
Fysisk adresse (MAC):
The Qnap 10G/2.5G switch also shows green (10gbps) uplink, however my speedtest looks weird:



I have full 1G/1G WAN, and my router (UDM-Pro) measures the full WAN speed.

I have:
1G WAN -> UDM-Pro (SFP+ RJ45 SFP) -> SFP+ DAC -> Netgear 10G switch (no config) -> Cat 6 B variant -> patch panel -> Cat 6 B variant -> walloutlet cat 6 B variant -> Qnap 10G/2.5G switch -> cat 6 B variant cable -> XikeStor 10G USB-C adapter

I find it weird that I get low upload, but acceptable download. The onboard network is an Intel 2.5G, if I use that I get the exact same. I put the Cat 6 cable to a 2.5G port in the Qnap, then the cat 6 cable to the onboard Intel network card, Windows says 2.5G, but the speedtest is identical.

Using 1G network card on a laptop and the issue is gone, the laptop gets the full 1G/1G speed, so the issue is definitely my computer, not the network.

Has anyone seen this before? 2 different network cards are limited in upload speed?

Using this adapter didn't change my pings in games. I still run 12 - 15 ms ping in CS2 when playing, no change there so the USB-C network card is good there, doesn't add any extra latency for me, which was my worry.