H!Fiber.com 4 Pack SFP+ Cable, 10G SFP+ DAC, 0.5M(1.64ft), Passive Direct Attach Copper Twinax Cable for Cisco SFP-H10GB-CU0.5M, Ubiquiti UniFi UC-DAC-SFP+, Meraki, Mikrotik, Intel, Fortinet, Netgear

Worked great for about 3 months, then I started getting lag and dropped packets increasing in frequency every day. Was using it between a Unifi Dream Machine Pro and a Unifi managed switch and after about 3.5 months the devices couldn't see each other most of the day through this cable.

I’ve been using the SFP+ 10G DAC cable for a few months now, and I’m thoroughly impressed with its performance. The installation was seamless, and the cable worked right out of the box without any need for extra configuration. The build quality is excellent, with sturdy connectors and a durable cable that doesn’t feel flimsy. Despite its solid construction, it’s still flexible enough to route easily in tight spaces within my server rack. The 10G speed delivers consistently fast and stable performance across the board. I’ve used it in a high-traffic data center environment, and it hasn’t shown any signs of throttling or interference. Latency is non-existent, and it’s been a reliable solution for my 10G networking needs. For anyone looking for a cost-effective, high-quality solution to connect SFP+ ports, I highly recommend this DAC cable. It’s a fantastic alternative to using more expensive transceivers and fiber optic cables.

Worked like a charm with my UDM Pro and USW 16 port POE etherlighting switch.

Detected immediately and runs at full speed without any issues ✔️ Negotiates at 10Gb instantly ✔️ Stable with no drops or errors ✔️ Perfect short length for clean setups ✔️ Solid build with tight, secure connectors ✔️ Works exactly like a proper SFP+ DAC should ⚠️ Connectors are very tight when removing I’m using this cable between my QNAP NAS and a switch, and it was recognized immediately. All devices report the link at 10Gb, and the connection has been completely stable with no drops or errors. I included a photo showing the interface registering at full speed. The 1 meter length is ideal for short runs between devices. It keeps the setup clean without extra slack, and the cable itself feels solid and well made. I don’t currently have another device that can fully saturate 10Gb for real-world throughput testing, but everything negotiates correctly and behaves exactly as expected. One thing to note is the connector fit. It is very tight, and the release tab takes a bit of effort. Not a problem, just something to be aware of. For a short SFP+ connection where you want something detected instantly and working without configuration, this cable has done exactly what I needed.

Simply works!