Product comparison · 2 network transceiver modules

LevelOne 155Mbps Single-mode BIDI SFP Transceiver, 20km, TX 1310nm / RX 1550nm vs LevelOne 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm

Key differences

Maximum transfer distance
- 155Mbps Single-mode BIDI SFP Transceiver, 20km, TX 1310nm / RX 1550nm:20 m
- 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:40000 m
Tx power (min)
- 155Mbps Single-mode BIDI SFP Transceiver, 20km, TX 1310nm / RX 1550nm:-14 dBmW
- 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:-8 dBmW
Tx power (max)
- 155Mbps Single-mode BIDI SFP Transceiver, 20km, TX 1310nm / RX 1550nm:-8 dBmW
- 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:-3 dBmW
Package width
- 155Mbps Single-mode BIDI SFP Transceiver, 20km, TX 1310nm / RX 1550nm:320 mm
- 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:75 mm
Package depth
- 155Mbps Single-mode BIDI SFP Transceiver, 20km, TX 1310nm / RX 1550nm:365 mm
- 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:51 mm
Package height
- 155Mbps Single-mode BIDI SFP Transceiver, 20km, TX 1310nm / RX 1550nm:275 mm
- 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:130 mm
Package weight
- 155Mbps Single-mode BIDI SFP Transceiver, 20km, TX 1310nm / RX 1550nm:7.6 kg
- 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:60 g

Differences highlightedShow differences only

Comparison of SFP-7321, SFP-7421
32 specifications	A LevelOne 155Mbps Single-mode BIDI SFP Transceiver, 20km, TX 1310nm / RX 1550nm Model SFP-7321 View product	B LevelOne 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm Model SFP-7421 View product
Performance3 differ
Fiber cable diameters supported (core/cladding)Known for one	9/125 µm	Unknown — not stated by the source
Maximum transfer distanceDiffers	20 m	40000 m
Tx power (min)Differs	-14 dBmW	-8 dBmW
Tx power (max)Differs	-8 dBmW	-3 dBmW
Auto MDI/MDI-XKnown for one	Unknown — not stated by the source	No
Packaging data4 differ
Package widthDiffers	320 mm	75 mm
Package depthDiffers	365 mm	51 mm
Package heightDiffers	275 mm	130 mm
Package weightDiffers	7.6 kg	60 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.