GBIC, SFP, SFP+ and XFP are all terms for a type of transceiver optics that plugs into a special port on a switch, router or other network device to convert the port to a copper or fiber interface. The commonly used SFP, SFP+ and XFP are all with LC connector. SFP and SFP+ with an identical pinout that is different with XFP optics. Both SFP+ and XFP with DDM function as default, whereas SFP partly support DDM function.
Comparison: SFP vs GBIC vs SFP+ vs XFP
Optics Type |
Standard |
Data Rate |
Wavelength |
Fiber Type |
Max Distance |
Typical Connector |
DOM |
Operating Temperature |
SFP |
SFP MSA |
155Mbps
622Mbps
1.25Gbps
2.125Gbps
2.5Gbps
3Gbps
4.25Gbps |
850nm
1310nm
1550nm
CWDM
DWDM
BIDI |
OM1
OM2
OS1
OS2 |
160km |
LC SC RJ-45 |
No or Yes |
Commercial
Industrial |
GBIC |
GBIC MSA |
155Mbps
622Mbps
1.25Gbps |
850nm
1310nm
1550nm
CWDM
DWDM
BIDI |
OM1
OM2
OS1
OS2 |
120km |
SC RJ-45 |
No |
Commercial
Industrial |
SFP+ |
IEE802.3ae
SFF-8431
SFF-8432 |
6Gbps
8.5Gbps
10Gbps |
850nm
1310nm
1550nm
CWDM
DWDM
BIDI
Tunable
Copper |
OM3
OM4
OS1
OS2 |
120km |
LC |
Yes |
Commercial
Industrial |
XFP |
IEE802.3ae
XFP MSA |
6Gbps
8.5Gbps
10Gbps |
850nm
1310nm
1550nm
CWDM
DWDM
BIDI
Tunable
Copper |
OM3
OM4
OS1
OS2 |
120km |
LC |
Yes |
Commercial
Industrial |
SFP VS SFP+ (SFP Plus)
SFP and SFP+ with a similar form factor dimension,hence looks like the same.
SFP optics usually support 155Mb/s,1.25Gb/s to 4.25Gb/s while SFP+ ones supports data rates up to 8.5Gb/s and 10Gb/s.
SFP is for Fast Ethernet ,Gigabit Ethernet,1x/2x/4x Fiber Channel and SDH/SONET with data rate below 2.488Gb/s applications. SFP+ for 10 Gigabit Ethernet,10G SDH/SONET applications. SFP is compliant with IEEE802.3, INF-8074 and SFF-8472 while SFP+ is compliant with the protocol of IEEE 802.3ae, SFF-8431, SFF-8432.
XFP VS SFP+ (SFP Plus)
XFP is a separate standard that also supports 10Gb/s speeds for applications of 10 Gigabit Ethernet, 10 Gbit /s Fibre Channel, Synchronous optical networking (SONET) at OC-192 rates, Synchronous optical networking STM-64, 10 Gbit /s Optical Transport Network (OTN) OTU-2, and parallel optics links.4. The primary difference between SFP+ and the slightly older XFP standard is that SFP+ without chip for clock and data recovery that makes an
SFP+ smaller than an XFP, enabling greater port density. However, some SFP+ optics manufacturer like Fiberland have develop SFP+ with CDR that for special applications. XFP is defined by XFP Multi Source Agreement that is different with SFP+ MSA. Since SFP+ smaller dimension than XFP that provide a higher port density in switch and routers,nowadays it becomes more and more popular.
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XFP module,
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