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A small form-factor pluggable (SFP) is a compact transceiver or cable module that fits a compatible networking-equipment port. “SFP” identifies a form factor and interface family, not one universal speed or link type: compatibility depends on the host port and the specific module.
What does SFP stand for?
SFP stands for small form-factor pluggable. It describes a compact module designed to plug into a compatible port on equipment such as a network switch or router. Depending on the module, the connection can use copper or optical media.
The SFP name alone does not tell you the supported data rate, cable, connector, optical reach, or whether the module will work in a particular device. NVIDIA describes SFP as a transceiver or cable with one or two lanes in each direction; the actual application depends on the module and host.
How do SFP, SFP+, and SFP28 differ?
These are related members of the pluggable-interface family, but their labels do not mean that every module or port is interchangeable. SNIA lists separate specification documents for SFP and SFP+ products. NVIDIA’s guide describes SFP+ as a 10–14 Gb/s product family and SFP28 as a 25–28 Gb/s family; those are the guide’s descriptions, not a substitute for the specific port and module specifications.
#1 Best Overall
- 10GBASE-SR SFP+ to LC Optical 10 Gigabit Ethernet Fiber transceiver module, 10GbE Multimode SFP+(compatible with both 62.5um and 50um LC cables; supports OM1/OM2/OM3/OM4 fiber cables), Duplex LC connector, 850nm, DDM, up to 300m.
- [Wide Compatibility] Compatible with Cisco SFP-10G-SR, Meraki MA-SFP-10GB-SR, Ubiquiti UniFi UF-MM-10G, Fortinet, Mikrotik, Netgear, D-Link, Supermicro, TP-Link and Other Open Switches.
- [Easy to Use] Easy installation, plug and play, fully hot-pluggable with ESD protection. Widely used in network switch, server, or NIC with SFP+ to a 10 Gigabit fiber channel network with multimode LC for Network Attached Storage(NAS), Storage Area Network(SAN), and High Performance Computing(HPC) applications.
- [Durable & Low Power Consumption] Adopt high quality alloy, the shell is strong and wear-resistant; Low power consumption(less than 1.05watt) and low EMI emission design. SFP MSA Compliant, IEEE 802.3ae Compliant. Operating Temperature: 0°C to 70°C.
- [What you Get] 2x 100% tested 10GBase-SR modules, 3-Year warranty and lifetime tech support.
Check the equipment documentation for the exact supported form factors, signaling rates, and modules. A shared physical resemblance or family name is not enough to establish compatibility.
Where are the SFP specifications defined?
SNIA’s SFF specification catalog identifies INF-8074, “SFP (Small Formfactor Pluggable) Transceiver,” and lists separate SFP+ documents, including SFF-8431 and SFF-8402. NVIDIA’s cable and connector guide points to public MSA specifications for details such as pinouts, memory registers, and mechanical dimensions. For implementation and compatibility, use the applicable specification alongside the documentation for the specific device.
Rank #2
- Data Rate: 10G
- Interface: RJ-45
- Cable Type: CAT.6a/CAT7
- Reach: up to 30 meters (PLEASE NOTE this 10GBase-T SFP+ transceiver may get hot when it's working, because it's built with the latest IC: Marvell AQR113C. We suggest to use this product in places where the ambient temperature is below 50°C.)
- Wide Compatibility - for Cisco, Fortinet, Netgear, D-Link, TP-Link, Linksys, Broadcom, Edge-core, EMC, F5, Meraki, Norkia, QTC, Supermicro, and Other Open Switches. (Not compatible with HP-ProCurve, HP-H3C, HP-Aruba, Intel, Arista, Mellanox, Dell Force10, Extreme, Brocade, Juniper). For Ubiquiti devices, we recommend this transceiver: ASIN B094N9YKN9.
How to check whether an SFP module will work
- Identify the host. Record the exact switch, router, or other equipment model and the specification for the port you intend to use.
- Confirm the supported module family and rate. Check the host documentation for supported form factors, signaling rates, and any module qualification or vendor-coding requirements.
- Choose the medium. Establish whether the connection is electrical/copper or optical, then select a module intended for that link.
- For an optical link, match both ends and the cable. Check the transceiver types at each end, fiber type, connector, and required reach. NVIDIA notes that optical patch-cable choice depends on the transceivers.
- Verify the complete link against device documentation. The module’s SFP-family label by itself cannot confirm compatibility or reach.
Without the equipment model and port specification, it is not possible to say responsibly whether a particular SFP module will work in your switch.
Quick Recap
Best Value
- 【SFP to RJ45 1000Base-T Copper SFP】Transmit data seamlessly up to 100 meters between your SFP interface and the copper gigabit port.
- 【Wide Compatibility】Compatible with most fiber switches, media converters, routers or other fiber optic equipments with SFP ports, SM331T provides additional copper cable connections for peace of mind.
- 【Easy for deployment】Plug and Play with no software installation or configuration/technician needed.
- 【Durable Metal Casing】Ensures strength and reliability for a long time, maintaining a stable connection in a wide range of environments.
- 【Hot Pluggable】Plug in or remove your SFP module without needing to shutdown your network. Hot swap-ability ensures your network always stays up.
Rank #4
- Compatibility - for Cisco SFP-10G-LR, Meraki MA-SFP-10GB-LR, Ubiquiti UF-SM-10G, D-Link, Supermicro, Netgear and other open switches.
- 10Pack 10GBase-LR SFP+ Modules - 10Gb/s, single-mode, 1310nm, Duplex LC fiber, up to 10KM transmission distance.
- Easy to use & Durable - Plug and play, hot-pluggable. Rotate the ring latch down at 90 degree angle to unlock, then pulling transceiver out from switch.
- High Quality - All of products are manufactured under strict quality control system, every module has been tested one by one on different switches before shipping, to ensure compatibility with different brand of switch.
- After-sales Service - 30 days Free-Returned, 3 years Free Warranty and lifetime technology support, please contact us, any product quality and compatibility issues.
Rank #3
- Data Rate: 1.25Gb/s
- Interface: RJ-45
- Cable Type: CAT.5e
- Reach: up to 100 meters transmission over CAT.5e
- Wide Compatibility - for Cisco, Cisco Meraki, Ubiquiti, Fortinet, D-Link, Supermicro, TP-Link, Broadcom, Linksys, TP-Link TL-SM331T and Other Open Switches.
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