10Gtek 10/100/1000Mbps Gigabit Ethernet Converged Network Adapter (NIC) with Intel 82576 Chip, Ethernet PCI Express Network Card, Dual RJ45 Copper Ports, PCI Express 2.0 X1, Compare to Intel E1G42ET

Very good product and working fine with pfsense and good performance with suricata IPS inline mode. pciconf -lcv #Output of pciconf command on freebsd. igb2@pci0:3:0:0: class=0x020000 card=0xa03c8086 chip=0x10c98086 rev=0x01 hdr=0x00 vendor = 'Intel Corporation' device = '82576 Gigabit Network Connection' class = network subclass = ethernet cap 01[40] = powerspec 3 supports D0 D3 current D0 cap 05[50] = MSI supports 1 message, 64 bit, vector masks cap 11[70] = MSI-X supports 10 messages, enabled Table in map 0x1c[0x0], PBA in map 0x1c[0x2000] cap 10[a0] = PCI-Express 2 endpoint max data 128(512) FLR link x1(x4) speed 2.5(2.5) ASPM disabled(L0s/L1) ecap 0001[100] = AER 1 0 fatal 0 non-fatal 1 corrected ecap 0003[140] = Serial 1 6cb311ffff1b17c0 ecap 000e[150] = ARI 1 ecap 0010[160] = SR-IOV 1 IOV disabled, Memory Space disabled, ARI disabled 0 VFs configured out of 8 supported First VF RID Offset 0x0180, VF RID Stride 0x0002 VF Device ID 0x10ca Page Sizes: 4096 (enabled), 8192, 65536, 262144, 1048576, 4194304 igb3@pci0:3:0:1: class=0x020000 card=0xa03c8086 chip=0x10c98086 rev=0x01 hdr=0x00 vendor = 'Intel Corporation' device = '82576 Gigabit Network Connection' class = network subclass = ethernet cap 01[40] = powerspec 3 supports D0 D3 current D0 cap 05[50] = MSI supports 1 message, 64 bit, vector masks cap 11[70] = MSI-X supports 10 messages, enabled Table in map 0x1c[0x0], PBA in map 0x1c[0x2000] cap 10[a0] = PCI-Express 2 endpoint max data 128(512) FLR link x1(x4) speed 2.5(2.5) ASPM disabled(L0s/L1) ecap 0001[100] = AER 1 0 fatal 0 non-fatal 1 corrected ecap 0003[140] = Serial 1 6cb311ffff1b17c0 ecap 000e[150] = ARI 1 ecap 0010[160] = SR-IOV 1 IOV disabled, Memory Space disabled, ARI disabled 0 VFs configured out of 8 supported First VF RID Offset 0x0180, VF RID Stride 0x0002 VF Device ID 0x10ca Page Sizes: 4096 (enabled), 8192, 65536, 262144, 1048576, 4194304

Not a technical review but my experience from being a sudo-tech. I have a TrueNAS only to host content for Plex. If Plex wasn’t a thing I would never have built two machines over the last seven years. The first one was dated two years ago easily so I had to upgrade. I bought a older MB but still lights out better than before- a ASRock B550 Pro4. What I didn’t know was that MB has a RealTek ethernet chip. I pulled everything in and all was well. I went to move data and my network started to drop. After seeing that I saw an error on the TrueNAS about the network. After researching the problem was the RealTek 2.5. I then bought an Intel 2.5 and found that those don’t have proper driver so that was returned. Then I found reviews about this 1G card and bought it. Immediately plugged in and worked with no extra effort from me. Moved big data files with no errors. I was relieved. How long will this last? I will see. I wish I could have gotten the 2.5G to work to stay up to date but that is fine. On to the next problem!

In my homelab, I have a pretty robust server based around Proxmox 7.1, an AMD 5950X and 128GB of RAM. It's a sweet little playground. I wanted to play around with virtualized firewalls, particularly PFSense. The cheapest way I could find to do it was by adding NIC's to my existing server. I selected this dual NIC primarily because it used an x1 PCIe interface. My mainboard has two of these slots. The 4 port version is an x4 PCIe and my mainboard has none of these, meaning I'd have to use the x16 slot. I generally prefer to reserve my higher end x16 PCI slots for more capable hardware, not a basic 1G multi-NIC. Install was standard PCIe, about as simple as it gets. I read the reviews indicating compatibility with Proxmox and I can attest that it works well in my 7.1 build. I had the typical issue where Linux's dynamic network interface monitoring feature jacked up my interface name and bridge configuration. Easily fixed with a trip to /etc/network/interfaces though. (And to be sure, this is a Linux issue, not a hardware one.) I've had my setup going for a few months now with no troubles. I don't know much about this network card, such as who makes it or where to get drivers that I didn't need in Proxmox. That hasn't seemed to matter. Oh, and if you're interested in virtualized firewalls, I'd encourage you to explore it. I've had a lot of fun with PFSense so far.

I am using the network board in a running a pfSense firewall. It is providing firewall services for a medium size public library. Just a bit of volunteerism, so I appreacated the extremely rea.sonable price! Since the board features an Intel chipset, it is highly compatible with both pfSense (which does not like realtek network cards). The board has performed flawlessly.

The cd loaded and I installed the driver. I did not install the card. Just installing the driver solved my network problem. computer refused to load network adapters. I then installed the card and the problem returned. I reinstalled the card intel driver and now computer loads adapter correctly. after many restarts so far working ok.

I picked up this card for use with an older ESXI host. It was recognized and worked great but I didn't realize that the card is not supported in v7.0 and above (I was running 6.5 previously). Where you don't need to use this latest version or use another supported OS I recommend it. I'll likely end up putting the card in a pfSense box instead which is another great use for these. Quick note: Avoid Realtek NICs in general but especially in pfSense and VMware.

If you use pfSense you're probably aware that nearly everybody recommends Intel over Realtek. I knew this going in, but I'd never had a problem with Realtek on any other platform so I ignored those warnings when I switched to pfSense. Things were actually stable for the most part, but I kept experiencing some very slight packet loss (less than 0.5%). I knew the hardware was good and I adjusted every pfSense tunable I could, but nothing seemed to fix it. Finally I decided to try an intel NIC. I purchased the dual-port PCI-E x1 version from here since it was much cheaper than most of the "legit" Intel cards. Long story short, it works! Packet loss is gone and I can easily saturate my gigabit fiber connection (one port is WAN and the other LAN). I still wish pfSense played nice with perfectly good realtek hardware, but at least there is this reasonably priced "intel" hardware.

First of all, calling this 1.25G is stupid. It's a 1000Mbps card like any other. Theoretically, 2 82576 ports on a PCIe 2.0 x1 connection should be fine. In my experience, my 4 port 82580 card on the same motherboard with PCIe x4 performs far better. Get this card if you absolutely need 2 ports in a x1 slot. But there's generally a reason you see multi port gigabit NICs with x4 PCIe lanes. Edit: Here's the reason why the x1 version is handicapped: While it's true that PCIe 2.0 x1 is capable of 500MB/s which is enough to fully saturate 2 1Gbps port in full duplex, this card only operates at one half of that speed. From pfsense: vendor = 'Intel Corporation' device = '82576 Gigabit Network Connection' class = network subclass = ethernet cap 01[40] = powerspec 3 supports D0 D3 current D0 cap 05[50] = MSI supports 1 message, 64 bit, vector masks cap 11[70] = MSI-X supports 10 messages, enabled Table in map 0x1c[0x0], PBA in map 0x1c[0x2000] cap 10[a0] = PCI-Express 2 endpoint max data 256(512) FLR RO NS max read 512 link x1(x4) speed 2.5(2.5) ASPM L1(L0s/L1) The last line is what is relevant here. It shows x1 link with x4 as the number of lanes requested and 2.5GT/s. The PCIe 2.0 spec allows for 5GT/s but this card doesn't use it. That means that there's only about 250MB/s of throughput available to two ports, and fully saturation one of them will nearly consume all that throughput.

La tajerta funciona tiene 2 puertos independientes, pero no importa si usas linux o windows, la tajeta dice que puede funcionar a 1gigabit, pero jamas enlaza a 1gbit, enlaza a 100mbit, ahi mismo donde otras tarjetas funcionan bien a 1gbit, esta no.

Use it for pfsense and work right out of the box

I have purchased 3 of these at this point. Works like a charm!

After multiple hours of trouble shooting, one of the NICs would always link at 100Mbps.

A very good card but it is 1.25 gb It says on the card 1 gb You also list the same card as 1 gb You should remove the 1.25 gb listing Minor detail 1 gb plenty fast