Product comparison · 2 network transceiver modules

LevelOne QFP-3111 40Gbps PLR4 Single-mode QSFP+ PSM4 Transceiver, 10km, 1310nm, MPO-12 vs LevelOne QFP-3140 40Gbps ER4 Single-mode QSFP+ CWDM4 Transceiver, 40km, 1310nm, Duplex LC

28specifications compared
2differ
26identical
3known for one product only

Key differences

The LevelOne QFP-3140 40Gbps ER4 Single-mode QSFP+ CWDM4 Transceiver, 40km, 1310nm, Duplex LC has 30,000 m more maximum transfer distance than the LevelOne QFP-3111 40Gbps PLR4 Single-mode QSFP+ PSM4 Transceiver, 10km, 1310nm, MPO-12 (40000 m vs 10000 m). SFP transceiver standard: PSM4 on the LevelOne QFP-3111 40Gbps PLR4 Single-mode QSFP+ PSM4 Transceiver, 10km, 1310nm, MPO-12, ER4 on the LevelOne QFP-3140 40Gbps ER4 Single-mode QSFP+ CWDM4 Transceiver, 40km, 1310nm, Duplex LC.

SFP transceiver standard
- QFP-3111 40Gbps PLR4 Single-mode QSFP+ PSM4 Transceiver, 10km, 1310nm, MPO-12:PSM4
- QFP-3140 40Gbps ER4 Single-mode QSFP+ CWDM4 Transceiver, 40km, 1310nm, Duplex LC:ER4
Maximum transfer distance
- QFP-3111 40Gbps PLR4 Single-mode QSFP+ PSM4 Transceiver, 10km, 1310nm, MPO-12:10000 m
- QFP-3140 40Gbps ER4 Single-mode QSFP+ CWDM4 Transceiver, 40km, 1310nm, Duplex LC:40000 m

Side by side

Differences highlightedShow differences only

Comparison of QFP-3111, QFP-3140
31 specifications	A LevelOne QFP-3111 40Gbps PLR4 Single-mode QSFP+ PSM4 Transceiver, 10km, 1310nm, MPO-12 Model QFP-3111 View product	B LevelOne QFP-3140 40Gbps ER4 Single-mode QSFP+ CWDM4 Transceiver, 40km, 1310nm, Duplex LC Model QFP-3140 View product
Performance2 differ
SFP transceiver standardDiffers	PSM4	ER4
Maximum transfer distanceDiffers	10000 m	40000 m
Coarse Wavelength Division Multiplexing (CWDM)Known for one	Unknown — not stated by the source	Yes
Duplex systemKnown for one	Unknown — not stated by the source	Full
Fiber optic connectorKnown for one	MPO-12	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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