Product comparison · 2 network transceiver modules

LevelOne 1.25Gbps Copper SFP Transceiver, 100m, RJ45 vs LevelOne 1.25Gbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm

Key differences

SFP transceiver type
- 1.25Gbps Copper SFP Transceiver, 100m, RJ45:Copper
- 1.25Gbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:Fiber optic
Maximum transfer distance
- 1.25Gbps Copper SFP Transceiver, 100m, RJ45:100 m
- 1.25Gbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:40000 m
Networking standards
- 1.25Gbps Copper SFP Transceiver, 100m, RJ45:IEEE 802.3, IEEE 802.3ab
- 1.25Gbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:IEEE 802.3ah
Maximum voltage
- 1.25Gbps Copper SFP Transceiver, 100m, RJ45:4 V
- 1.25Gbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:6 V
Maximum current
- 1.25Gbps Copper SFP Transceiver, 100m, RJ45:0.375 A
- 1.25Gbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:0.3 A

Differences highlightedShow differences only

Comparison of SFP-3841, SFP-9421
34 specifications	A LevelOne 1.25Gbps Copper SFP Transceiver, 100m, RJ45 Model SFP-3841 View product	B LevelOne 1.25Gbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm Model SFP-9421 View product
Performance3 differ
SFP transceiver typeDiffers	Copper	Fiber optic
Single-mode fiber (SMF) supportedKnown for one	Unknown — not stated by the source	Yes
Fiber optic connectorKnown for one	Unknown — not stated by the source	LC
Fiber cable diameters supported (core/cladding)Known for one	Unknown — not stated by the source	9/125 µm
Maximum transfer distanceDiffers	100 m	40000 m
Tx power (min)Known for one	Unknown — not stated by the source	-3 dBmW
Tx power (max)Known for one	Unknown — not stated by the source	2 dBmW
Networking standardsDiffers	IEEE 802.3, IEEE 802.3ab	IEEE 802.3ah
Fiber ports quantityKnown for one	Unknown — not stated by the source	1
Ethernet LAN (RJ-45) portsKnown for one	1	Unknown — not stated by the source
Featuresidentical
Hot-Plug supportKnown for one	Yes	Unknown — not stated by the source
Power2 differ
Maximum voltageDiffers	4 V	6 V
Maximum currentDiffers	0.375 A	0.3 A
Certificatesidentical
SafetyKnown for one	Unknown — not stated by the source	EN 60825-1
Packaging contentidentical
Quantity per packKnown for one	Unknown — not stated by the source	1 pc(s)
Logistics dataidentical
Country of originKnown for one	China	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.