DirecxourceSpec score 7.5
QSFP+, 40 Speed, Single-mode fiber, 1310 nm
+40 Gbps speed for high-bandwidth fiber links
+Single-mode fiber with 40 km reach
+LC connector for standard duplex fiber cabling
$6,995.00
as of 11/04/2026 06:07 PST - DetailsProduct details
Spec score7.5
Pros+40 Gbps speed for high-bandwidth fiber links
+Single-mode fiber with 40 km reach
+LC connector for standard duplex fiber cabling
+QSFP+ form factor for 40G ports
+1310 nm wavelength for long-distance single-mode links
Compared with the 831 Network Transceivers on this page+40000 reach or length: only 79 of 538 here have a higher reach or length
+40 speed: 433 of the 643 here have a lower speed
How pros and cons are picked (About: Disclaimer) About this product
CizvveocSpec score 7.5
QSFP+, 40 Speed, Single-mode fiber, 1310 nm
+40 Gbps speed in QSFP+ form factor
+Duplex LC connector
+Listed 1310 nm wavelength
$14,444.00
as of 11/04/2026 10:09 PST - DetailsProduct details
Spec score7.5
Pros+40 Gbps speed in QSFP+ form factor
+Duplex LC connector
+Listed 1310 nm wavelength
Compared with the 831 Network Transceivers on this page+40000 reach or length: only 79 of 538 here have a higher reach or length
+40 speed: 433 of the 643 here have a lower speed
How pros and cons are picked (About: Disclaimer) About this product
DwfskzkvSpec score 7.5
QSFP+, 40 Speed, Single-mode fiber, 10 In the box
+Ten-pack for multiple links
+40 km single-mode reach for long distances
+40 Gbps speed for fast links
$5,736.00
as of 11/04/2026 10:09 PST - DetailsProduct details
Spec score7.5
Pros+Ten-pack for multiple links
+40 km single-mode reach for long distances
+40 Gbps speed for fast links
+Duplex LC connector for fiber links
Compared with the 831 Network Transceivers on this page+40000 reach or length: only 79 of 538 here have a higher reach or length
+40 speed: 433 of the 643 here have a lower speed
How pros and cons are picked (About: Disclaimer) About this product
GenericSpec score 7.5
QSFP+, 40 Speed, Single-mode fiber
+Single-mode fiber for long-distance links
+40 Gbps speed for high-throughput connections
+Long 40 km reach for distant connections
$6,125.58
as of 11/04/2026 06:07 PST - DetailsProduct details
Spec score7.5
Pros+Single-mode fiber for long-distance links
+40 Gbps speed for high-throughput connections
+Long 40 km reach for distant connections
+TAA compliant for government procurement needs
+QSFP+ form factor for 40G ports
Compared with the 831 Network Transceivers on this page+40000 reach or length: only 79 of 538 here have a higher reach or length
+40 speed: 433 of the 643 here have a lower speed
How pros and cons are picked (About: Disclaimer) About this product
WvcltvjaSpec score 7.5
QSFP+, 40 Speed, Single-mode fiber, 1310 nm
+Long 40 km reach over single-mode fiber
+Duplex LC connector for standard fiber patching
+40 Gbps speed for high-bandwidth links
$14,444.00
as of 11/04/2026 10:09 PST - DetailsProduct details
Spec score7.5
Pros+Long 40 km reach over single-mode fiber
+Duplex LC connector for standard fiber patching
+40 Gbps speed for high-bandwidth links
+Sold in a pack of 12 pairs
Compared with the 831 Network Transceivers on this page+40000 reach or length: only 79 of 538 here have a higher reach or length
+40 speed: 433 of the 643 here have a lower speed
How pros and cons are picked (About: Disclaimer) About this product
ChuangsutonSpec score 7.4
QSFP28, 100 Speed, Single-mode fiber
+Delivers 100 Gbps over single-mode fiber
+Reaches up to 20 km over single-mode fiber
+QSFP28 form factor for high-density 100G ports
$649.99
as of 11/04/2026 03:09 PST - DetailsProduct details
Spec score7.4
Pros+Delivers 100 Gbps over single-mode fiber
+Reaches up to 20 km over single-mode fiber
+QSFP28 form factor for high-density 100G ports
+Bidirectional design over a single fiber strand
Compared with the 831 Network Transceivers on this page+100 speed: only 19 of 643 here have a higher speed
+20000 reach or length: 381 of the 538 here have a lower reach or length
How pros and cons are picked (About: Disclaimer) About this product
MxrnmrorqSpec score 7.4
2.5 Speed, Single-mode fiber, 1310 nm
+Long 40 km reach for single-mode fiber links
+2.5 Gbps speed suits multi-gigabit networks
+1310 nm wavelength for single-mode fiber
$107.57
as of 11/04/2026 06:07 PST - DetailsProduct details
Spec score7.4
Pros+Long 40 km reach for single-mode fiber links
+2.5 Gbps speed suits multi-gigabit networks
+1310 nm wavelength for single-mode fiber
Compared with the 831 Network Transceivers on this page+40000 reach or length: only 79 of 538 here have a higher reach or length
−2.5 speed: 497 of the 643 here have a higher speed
How pros and cons are picked (About: Disclaimer) About this product
GenericSpec score 7.4
QSFP28, 100 Speed, Single-mode fiber, LC
+20 km listed reach over single-mode fiber
+100 Gbps speed for high-bandwidth links
+Duplex LC connector matches common fiber patch cables
$5,915.58
as of 11/04/2026 06:07 PST - DetailsProduct details
Spec score7.4
Pros+20 km listed reach over single-mode fiber
+100 Gbps speed for high-bandwidth links
+Duplex LC connector matches common fiber patch cables
+QSFP28 form factor for 100G ports
Compared with the 831 Network Transceivers on this page+100 speed: only 19 of 643 here have a higher speed
+20000 reach or length: 381 of the 538 here have a lower reach or length
How pros and cons are picked (About: Disclaimer) About this product
UxbptzflkSpec score 7.4
SFP, 1 Speed, Single-mode fiber, 1 In the box
+Single-mode fiber for links up to 40 km
+Standard SFP form factor for 1.25 Gbps connections
+Pack of 5 pairs for multiple links
$150.48
as of 11/04/2026 06:07 PST - DetailsProduct details
Spec score7.4
Pros+Single-mode fiber for links up to 40 km
+Standard SFP form factor for 1.25 Gbps connections
+Pack of 5 pairs for multiple links
Compared with the 831 Network Transceivers on this page+40000 reach or length: only 79 of 538 here have a higher reach or length
−1 speed: 503 of the 643 here have a higher speed
How pros and cons are picked (About: Disclaimer) About this product
UxbptzflkSpec score 7.4
SFP, 1 Speed, Single-mode fiber, 1310 nm
+Reaches up to 40 km over single-mode fiber
+Operates at 1310 nm wavelength
+Standard SFP form factor at 1 Gbps
$271.26
as of 11/04/2026 06:07 PST - DetailsProduct details
Spec score7.4
Pros+Reaches up to 40 km over single-mode fiber
+Operates at 1310 nm wavelength
+Standard SFP form factor at 1 Gbps
Compared with the 831 Network Transceivers on this page+40000 reach or length: only 79 of 538 here have a higher reach or length
−1 speed: 503 of the 643 here have a higher speed
How pros and cons are picked (About: Disclaimer) About this product
xchSRYdgSpec score 7.4
SFP+, 10 Speed, Single-mode fiber
+Runs at 10 Gbps over single-mode fiber
+SFP+ form factor fits common switch ports
+Longer reach than typical 10 km modules
$893.40
as of 11/04/2026 03:10 PST - DetailsProduct details
Spec score7.4
Pros+Runs at 10 Gbps over single-mode fiber
+SFP+ form factor fits common switch ports
+Longer reach than typical 10 km modules
Compared with the 831 Network Transceivers on this page+40000 reach or length: only 79 of 538 here have a higher reach or length
How pros and cons are picked (About: Disclaimer) About this product
xchSRYdgSpec score 7.4
1 Speed, Single-mode fiber, 1310 nm
+Single-mode fiber supports long distances
+1310 nm wavelength for single-mode links
+1 Gbps speed for gigabit links
$175.70
as of 11/04/2026 03:10 PST - DetailsProduct details
Spec score7.4
Pros+Single-mode fiber supports long distances
+1310 nm wavelength for single-mode links
+1 Gbps speed for gigabit links
Compared with the 831 Network Transceivers on this page+40000 reach or length: only 79 of 538 here have a higher reach or length
−1 speed: 503 of the 643 here have a higher speed
How pros and cons are picked (About: Disclaimer) About this product
xchSRYdgSpec score 7.4
10 Speed, Single-mode fiber
+Rated for a 40 km single-mode reach
+Supports 10 Gbps transmission speed
+XFP form factor for extended-reach links
$652.18
as of 11/04/2026 03:10 PST - DetailsProduct details
Spec score7.4
Pros+Rated for a 40 km single-mode reach
+Supports 10 Gbps transmission speed
+XFP form factor for extended-reach links
Compared with the 831 Network Transceivers on this page+40000 reach or length: only 79 of 538 here have a higher reach or length
How pros and cons are picked (About: Disclaimer) About this product
GenericSpec score 7.3
QSFP28, 100 Speed, Single-mode fiber, LC
+Delivers 100 Gbps over single-mode fiber
+Reaches up to 10 km over single-mode fiber
+Uses LC connectors for common fiber patch cords
$8,058.00
as of 11/04/2026 06:07 PST - DetailsProduct details
Spec score7.3
Pros+Delivers 100 Gbps over single-mode fiber
+Reaches up to 10 km over single-mode fiber
+Uses LC connectors for common fiber patch cords
+QSFP28 form factor for high-density 100G ports
Compared with the 831 Network Transceivers on this page+100 speed: only 19 of 643 here have a higher speed
+10000 reach or length: 277 of the 538 here have a lower reach or length
How pros and cons are picked (About: Disclaimer) About this product
BfqtxlavkSpec score 7.3
QSFP28, 100 Speed, Single-mode fiber
+100 Gb speed for very high-throughput links
+QSFP28 form factor for dense port use
+Single-mode fiber supports 10 km reach
$596.06
as of 11/04/2026 10:10 PST - DetailsProduct details
Spec score7.3
Pros+100 Gb speed for very high-throughput links
+QSFP28 form factor for dense port use
+Single-mode fiber supports 10 km reach
Compared with the 831 Network Transceivers on this page+100 speed: only 19 of 643 here have a higher speed
+10000 reach or length: 277 of the 538 here have a lower reach or length
How pros and cons are picked (About: Disclaimer) About this product
BsrfnrefwSpec score 7.3
QSFP28, 100 Speed, 1310 nm, LC
+100 Gbps speed for high-bandwidth links
+Single mode fiber with 1310 nm wavelength
+10 km stated reach for long-distance links
$7,172.86
as of 11/04/2026 06:07 PST - DetailsProduct details
Spec score7.3
Pros+100 Gbps speed for high-bandwidth links
+Single mode fiber with 1310 nm wavelength
+10 km stated reach for long-distance links
+LC connector for common fiber patch cables
+QSFP28 form factor
Compared with the 831 Network Transceivers on this page+100 speed: only 19 of 643 here have a higher speed
+10000 reach or length: 277 of the 538 here have a lower reach or length
How pros and cons are picked (About: Disclaimer) About this product
BfqtxlavkSpec score 7.3
QSFP28, 100 Speed, Single-mode fiber
+Delivers 100 Gbps data speed
+Uses QSFP28 form factor
+Single-mode fiber rated for 10000 meters
$533.89
as of 11/04/2026 10:09 PST - DetailsProduct details
Spec score7.3
Pros+Delivers 100 Gbps data speed
+Uses QSFP28 form factor
+Single-mode fiber rated for 10000 meters
+LAN-WDM design for 100G links
Compared with the 831 Network Transceivers on this page+100 speed: only 19 of 643 here have a higher speed
+10000 reach or length: 277 of the 538 here have a lower reach or length
How pros and cons are picked (About: Disclaimer) About this product
GenericSpec score 7.3
QSFP28, 100 Speed, Single-mode fiber, 1310 nm
+QSFP28 form factor for 100G links
+Single-mode fiber for 10 km reach
+1310 nm wavelength for long-distance transmission
$299.95
as of 11/04/2026 03:10 PST - DetailsProduct details
Spec score7.3
Pros+QSFP28 form factor for 100G links
+Single-mode fiber for 10 km reach
+1310 nm wavelength for long-distance transmission
Compared with the 831 Network Transceivers on this page+100 speed: only 19 of 643 here have a higher speed
+10000 reach or length: 277 of the 538 here have a lower reach or length
How pros and cons are picked (About: Disclaimer) 10GtekSpec score 7.2
SFP28, 25 Speed, Single-mode fiber, 1310 nm
+Supports 25 Gbps over single-mode fiber
+Reaches up to 10 kilometers
+Duplex LC connector for fiber links
$22.99
as of 11/04/2026 06:06 PST - DetailsProduct details
Spec score7.2
Pros+Supports 25 Gbps over single-mode fiber
+Reaches up to 10 kilometers
+Duplex LC connector for fiber links
+Listed for Cisco and Ubiquiti equipment
Compared with the 831 Network Transceivers on this page+25 speed: 395 of the 643 here have a lower speed
+10000 reach or length: 277 of the 538 here have a lower reach or length
How pros and cons are picked (About: Disclaimer) About this product
GESDSpec score 7.2
SFP+, 10 Speed, Single-mode fiber, 2 In the box
+Two modules in one pack
+10 Gbps speed for SFP+ ports
+20 km reach over single-mode fiber
$31.41
as of 11/04/2026 06:06 PST - DetailsProduct details
Spec score7.2
Pros+Two modules in one pack
+10 Gbps speed for SFP+ ports
+20 km reach over single-mode fiber
+LC connector for standard fiber patch cords
+Lists Cisco, Ubiquiti and TP-Link compatibility
Compared with the 831 Network Transceivers on this page+20000 reach or length: 381 of the 538 here have a lower reach or length
How pros and cons are picked (About: Disclaimer) About this product
EimsoahSpec score 7.2
SFP, 1 Speed, Single-mode fiber, 1310 nm
+1310 nm wavelength for single-mode fiber links
+20 km reach for longer fiber runs
+LC connector for standard fiber patch cords
$10.49
as of 11/04/2026 10:09 PST - DetailsProduct details
Spec score7.2
Pros+1310 nm wavelength for single-mode fiber links
+20 km reach for longer fiber runs
+LC connector for standard fiber patch cords
+Dual fiber design with DDM monitoring
Compared with the 831 Network Transceivers on this page+20000 reach or length: 381 of the 538 here have a lower reach or length
−1 speed: 503 of the 643 here have a higher speed
How pros and cons are picked (About: Disclaimer) About this product
EimsoahSpec score 7.2
SFP, 1 Speed, Single-mode fiber
+20 km reach over single-mode fiber
+1.25 Gbps speed for gigabit SFP ports
+Includes DDM function for monitoring
$11.49
as of 11/04/2026 10:09 PST - DetailsProduct details
Spec score7.2
Pros+20 km reach over single-mode fiber
+1.25 Gbps speed for gigabit SFP ports
+Includes DDM function for monitoring
Compared with the 831 Network Transceivers on this page+20000 reach or length: 381 of the 538 here have a lower reach or length
−1 speed: 503 of the 643 here have a higher speed
How pros and cons are picked (About: Disclaimer) About this product
Extreme NetworksSpec score 7.2
QSFP+, 40 Speed, Single-mode fiber, LC
+40G speed for high-throughput network links
+Single-mode fiber medium for long-distance links
+LC connector for standard fiber patching
$7,160.93
as of 11/04/2026 06:07 PST - DetailsProduct details
Spec score7.2
Pros+40G speed for high-throughput network links
+Single-mode fiber medium for long-distance links
+LC connector for standard fiber patching
Compared with the 831 Network Transceivers on this page+40 speed: 433 of the 643 here have a lower speed
+10000 reach or length: 277 of the 538 here have a lower reach or length
How pros and cons are picked (About: Disclaimer) About this product
xchSRYdgSpec score 7.2
SFP, 1 Speed, Single-mode fiber, 1310 nm
+Single-mode fiber supports long-distance links up to 15 km
+Operates at 1310 nm for single-mode fiber links
+SFP form factor fits standard SFP ports
$139.97
as of 11/04/2026 03:10 PST - DetailsProduct details
Spec score7.2
Pros+Single-mode fiber supports long-distance links up to 15 km
+Operates at 1310 nm for single-mode fiber links
+SFP form factor fits standard SFP ports
+1 Gbps speed for gigabit network links
Compared with the 831 Network Transceivers on this page+15000 reach or length: 379 of the 538 here have a lower reach or length
−1 speed: 503 of the 643 here have a higher speed
How pros and cons are picked (About: Disclaimer) About this product
HPC OpticsSpec score 7.2
QSFP28, 100 Speed, Multimode fiber, 850 nm
+100G QSFP28 speed for high-bandwidth links
+Uses multimode fiber at 850 nm wavelength
+100m reach for connections across a data center
$79.99
as of 11/04/2026 03:09 PST - DetailsProduct details
Spec score7.2
Pros+100G QSFP28 speed for high-bandwidth links
+Uses multimode fiber at 850 nm wavelength
+100m reach for connections across a data center
Compared with the 831 Network Transceivers on this page+100 speed: only 19 of 643 here have a higher speed
−100 reach or length: 354 of the 538 here have a higher reach or length
How pros and cons are picked (About: Disclaimer) About this product
IsleleapSpec score 7.2
QSFP28, 100 Speed, Multimode fiber, 850 nm
+100G QSFP28 transceiver with MPO multimode fiber
+850 nm wavelength for short-reach optical links
+100 m stated reach over multimode fiber
$38.88
as of 11/04/2026 03:10 PST - DetailsProduct details
Spec score7.2
Pros+100G QSFP28 transceiver with MPO multimode fiber
+850 nm wavelength for short-reach optical links
+100 m stated reach over multimode fiber
+Lists compatibility with Cisco, Arista, Juniper and Nokia equipment
Compared with the 831 Network Transceivers on this page+100 speed: only 19 of 643 here have a higher speed
−100 reach or length: 354 of the 538 here have a higher reach or length
How pros and cons are picked (About: Disclaimer) About this product
JenivaintSpec score 7.2
SFP, 1 Speed, Single-mode fiber, 1310 nm
+Supports 1.25 Gbps over single-mode fiber
+Long 20 km transmission distance
+Uses a 1310 nm wavelength
$10.66
as of 11/04/2026 10:09 PST - DetailsProduct details
Spec score7.2
Pros+Supports 1.25 Gbps over single-mode fiber
+Long 20 km transmission distance
+Uses a 1310 nm wavelength
Compared with the 831 Network Transceivers on this page+20000 reach or length: 381 of the 538 here have a lower reach or length
−1 speed: 503 of the 643 here have a higher speed
How pros and cons are picked (About: Disclaimer) About this product
GenericSpec score 7.2
SFP28, 25 Speed, Single-mode fiber, LC
+25 Gbps speed for fast data transfer
+Single-mode fiber reach of 10 kilometers
+LC connector for standard fiber connections
$282.00
as of 11/04/2026 06:07 PST - DetailsProduct details
Spec score7.2
Pros+25 Gbps speed for fast data transfer
+Single-mode fiber reach of 10 kilometers
+LC connector for standard fiber connections
+SFP28 form factor for compact 25G ports
Compared with the 831 Network Transceivers on this page+25 speed: 395 of the 643 here have a lower speed
+10000 reach or length: 277 of the 538 here have a lower reach or length
How pros and cons are picked (About: Disclaimer) About this product
40GBASE-ER4 QSFP+ Transceiver, 1310nm, 40km SMF, LC DOM, HPE H3C JL306A Compatible by direcXource
