Has anyone used this card with pfsense?

I am using it now in a Pfsense server. Out of the box 5his card will not work with 2.4.5 p1. You will either need to manually integrate the new drivers in to the latest release or you can upgrade to 2.5 snapshot developmental release. Other option is to use Opnsense, which their latest stable build should support this card out of the box.

Why didn’t syba put heat sinks on the rtl8125 chips? i’m seeing a lot of posts talking about throttling and erratic behavior from over heating.

a few reviews dating as far back as Aug 2021 say this card was updated and now includes a heatsink. but here it is 2023 and still the ad shows the [old] non-heatsink model card. I don't think the Seller is very serious about marketing this product. it appears from one review's photos that the heatsink doesn't cover the pair of RTL8125 ethernet chips instead, it covers the ASM1182e chip, which is a 2-to-1 PCIe 2.0 "packet switch". (assuming that's still on the board and wasn't updated to a better suited PCIe 3.0 switch). https://m.media-amazon.com/images/I/71DvH7EMbgL.jpg https://m.media-amazon.com/images/I/61hj6vAgZQL.jpg https://m.media-amazon.com/images/I/814kvobDV-L.jpg https://www.amazon.com/gp/customer-reviews/R2PUHQHMNBQ9HC https://www.amazon.com/gp/customer-reviews/R24JDNHXCMCFAH .

What pcie generation is it?

PCIE 2.0 x1 lane you can barely make out in one of the ad photos it has an ASM1182e chip. the ASM1182e is a 2-to-1 PCIe 2.0 "packet switch". the pair of RTL8125 ethernet chips connect through it, to one single PCIe lane. since the pair of 2.5GbE running concurrently "could" transfer 5Gbps but PCIe 2.0 lane speed is 5Gbps with 8b/10b encoding, 20% overhead the max combined ethernet transfer is only 4Gbps. or less. you'll see a few Reviews here from people who caught on - that it can't produce 5Gbps.

Can the ports be aggregated in windows? will it work with smb3?

The ports for this card can't be aggregated.

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🚀 Double your network speed, halve your latency—upgrade like a pro!

BROAD OS COMPATIBILITY - Works flawlessly across Windows and Linux platforms, ensuring zero downtime.
COMPACT LOW PROFILE READY - Includes an 8cm bracket for sleek HTPC or small form factor cases—power without bulk.
PLUG PLAY PC IE VERSATILITY - Fits any PCI Express slot from x1 to x16, making upgrades seamless and future-proof.
ENTERPRISE GRADE VLAN SUPPORT - Fully compatible with 802.1Q VLAN tagging for professional network segmentation.
BLAZING DUAL 2 5 GIGABIT SPEEDS - Experience lightning-fast network throughput that crushes standard gigabit limits.

The IO CREST Syba SD-PEX24066 is a dual-port 2.5 Gigabit Ethernet PCIe network card designed for professionals demanding ultra-fast, reliable wired connections. Compatible with all PCIe slots and major operating systems, it includes a low-profile bracket for compact PC builds and supports advanced VLAN tagging, making it ideal for high-performance home offices and small servers.

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Brand	IO CREST
Product Dimensions	10.67 x 1.27 x 13.97 cm; 90 g
Item model number	SD-PEX24066
Manufacturer	Syba
Series	SD-PEX24066
Color	multicolor
Operating System	Mac,Windows
Are Batteries Included	No
Item Weight	90 g

IO CRESTSyba Dual 2.5 Gigabit Ethernet PCI-E Network Expansion Card RJ45 LAN Adapter Low Profile Bracket SD-PEX24066

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