No. SFP+ does not provide enough power to drive 10GBase-T, but manufacturers desperate to drive adoption have created "low-power" units anyways which can only drive 10GBase-T over a much shorter distance than standard. Further, your card or switch also needs to support the SFP+, which is actually a complex electronic device with its own "driver" needs. What this really means is that these SFP+-to-RJ45 transceivers are a lot less useful than you might think. You can use them on devices that have been designed to work with them. For everything else, it's really better to use vendor optics and fiber.
Thanks for the reply. I elected to pick up
Microtik 10Gbe switch CRS305-1G-4S+IN , once you start the add up the cost of modules the switch is cheaper and gives me more options. From my research the switch shows as compatible with the SFP+ to RJ45 modules I mentioned in the links above above. For the 2x
Chelsio 10GB 2-Port PCI-e OPT Adapter Card I am just using DAC cables to connect to the switch. I have not had issues with the DAC cables when directly attached from my hypervisor to the FreeNAS. I also picked up another SFP+ module from 10Gtek
SFP+ to RJ45 Copper Module . I figured since I bought the above 2 modules second hand, I would get a brand new module just in case I got bad modules. Plus in my experience 10Gtek has been pleasant to work with, their
DAC cables are excellent.
Wish me luck I am about to do tests.. my runs are not super long, they just happen to be cat6 instead of fiber.
#Several days later...
Hi I have been having a heck of a time finding an SFP+ to rj45 module that works in my network?
The switch is a Mikrotik CRS305-1G-4S+IN
There are three NICs I need to communicate with
2x Chelsio 10GB 2-Port PCI-e OPT Adapter Card 110-1088-30 (2 SFP+ ports)
1x Aquantia AQC107 which is an onboard NIC for the ASRock x470 Taichi Ultimate x470 Motherboard
I also have DAC Cables 2m and 1m I am using 10G SFP+ DAC Cable - 10GBASE-CU Passive Direct Attach Copper Twinax SFP Cable for Cisco SFP-H10GB-CU2M, Ubiquiti, D-link, Supermicro, Netgear, Mikrotik, Open Switch Devices,
These DAC cables work with the switch and can ping the dell R710 host and the Supermicro FreeNAS host. I can not ping a host connected to the same switch with a SFP+ to rj45 adapter.
I have tried the following modules:
10gtek
SFP+ to RJ45 Copper Module - 10GBase-T Transceiver for Cisco SFP-10G-T-S, Ubiquiti UF-RJ45-10G, Netgear, D-Link, Supermicro, TP-Link, Broadcom, Linksys, up to 30m
ipolex
10G SFP+ RJ45 Copper Transceiver, 10GBase-T Module for Cisco SFP-10G-T-S, Ubiquiti, D- Link, Supermicro, Netgear, Mikrotik (Cat6a/7, 30-Meter)
and
fibay
10G SFP+ to RJ45 for Cisco SFP-10G-T Netgear AXM765 Mikrotik Finisar 10GBase-T SFP+ Transceiver Module Copper, Cat6a/7, 30M
I can get a DHCP lease on these but they will not ping out to anything else on the switch.
Ideally I would direct attach without the switch but (inform me if I am incorrect) these old Chelsio NICs do not have compatiable SFP+ to rj45 modules because the card does not supply enough power.
To connect the RJ-45 runs I have flexboot cat6 cables from monoprice, they are only 5 foot runs while I am testing.
I have cat6 but the run is too long and jumpers through a cat6 patch panel and two wall jacks to get from NAS to Workstation which is too much for 10gbe plus the run is approx 60 meters.
The run will be approx 55-60 meters and I will upgrade that run to cat6a or cat 7 depending on your recommendation. I could also go fiber if that works better?
I can put a 10GBe card in my workstation with SFP+. The supermicro has all it's PCIE slots taken so I only have the option of replacing the chelsio card with something else like an intel x540-T2.
The switch can be part of the mix or taken out and just direct attach SFP+ or 10Gbase-T cables. All the runs are short the problem comes in with the workstation being about 200 feet away. Any help is appreciated , thanks!