Product comparison · 2 network transceiver modules

LevelOne 1.25Gbps Single-mode BIDI SFP Transceiver, 20km, TX 1550nm / RX 1310nm vs LevelOne 1.25Gbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm

Key differences

Maximum transfer distance
- 1.25Gbps Single-mode BIDI SFP Transceiver, 20km, TX 1550nm / RX 1310nm:20000 m
- 1.25Gbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:40000 m
Tx power (min)
- 1.25Gbps Single-mode BIDI SFP Transceiver, 20km, TX 1550nm / RX 1310nm:-8 dBmW
- 1.25Gbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:-3 dBmW
Tx power (max)
- 1.25Gbps Single-mode BIDI SFP Transceiver, 20km, TX 1550nm / RX 1310nm:-3 dBmW
- 1.25Gbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:2 dBmW
Weight
- 1.25Gbps Single-mode BIDI SFP Transceiver, 20km, TX 1550nm / RX 1310nm:22 g
- 1.25Gbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:20 g

Differences highlightedShow differences only

Comparison of SFP-9331, SFP-9421
32 specifications	A LevelOne 1.25Gbps Single-mode BIDI SFP Transceiver, 20km, TX 1550nm / RX 1310nm Model SFP-9331 View product	B LevelOne 1.25Gbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm Model SFP-9421 View product
Performance3 differ
Maximum transfer distanceDiffers	20000 m	40000 m
Tx power (min)Differs	-8 dBmW	-3 dBmW
Tx power (max)Differs	-3 dBmW	2 dBmW
Featuresidentical
Plug and PlayKnown for one	Yes	Unknown — not stated by the source
Weight & dimensions1 differ
WeightDiffers	22 g	20 g

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.