Product comparison · 2 network transceiver modules

LevelOne 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm vs StarTech.com Cisco GLC-SX-MM Compatible SFP Module - 1000BASE-SX - 1GbE Multimode Fiber MMF Optic Transceiver - 1GE Gigabit Ethernet SFP - LC 550m - 850nm - Cis

Add a product
  • 22specifications compared
  • 13differ
  • 9identical
  • 24known for one product only

Key differences

  • Maximum data transfer rate
    • 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:155 Mbit/s
    • Cisco GLC-SX-MM Compatible SFP Module - 1000BASE-SX - 1GbE Multimode Fiber MMF Optic Transceiver - 1GE Gigabit Ethernet SFP - LC 550m - 850nm - Cis:1250 Mbit/s
  • Maximum transfer distance
    • 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:40000 m
    • Cisco GLC-SX-MM Compatible SFP Module - 1000BASE-SX - 1GbE Multimode Fiber MMF Optic Transceiver - 1GE Gigabit Ethernet SFP - LC 550m - 850nm - Cis:550 m
  • Networking standards
    • 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:IEEE 802.3ah
    • Cisco GLC-SX-MM Compatible SFP Module - 1000BASE-SX - 1GbE Multimode Fiber MMF Optic Transceiver - 1GE Gigabit Ethernet SFP - LC 550m - 850nm - Cis:IEEE 802.3z
  • Certification
    • 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:CE, FCC
    • Cisco GLC-SX-MM Compatible SFP Module - 1000BASE-SX - 1GbE Multimode Fiber MMF Optic Transceiver - 1GE Gigabit Ethernet SFP - LC 550m - 850nm - Cis:CE, FCC, UL, REACH
  • Operating relative humidity (H-H)
    • 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:5 - 95%
    • Cisco GLC-SX-MM Compatible SFP Module - 1000BASE-SX - 1GbE Multimode Fiber MMF Optic Transceiver - 1GE Gigabit Ethernet SFP - LC 550m - 850nm - Cis:30 - 70%
  • Width
    • 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:13.7 mm
    • Cisco GLC-SX-MM Compatible SFP Module - 1000BASE-SX - 1GbE Multimode Fiber MMF Optic Transceiver - 1GE Gigabit Ethernet SFP - LC 550m - 850nm - Cis:12 mm
  • Depth
    • 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:56.5 mm
    • Cisco GLC-SX-MM Compatible SFP Module - 1000BASE-SX - 1GbE Multimode Fiber MMF Optic Transceiver - 1GE Gigabit Ethernet SFP - LC 550m - 850nm - Cis:60 mm
  • Height
    • 155Mbps Single-mode BIDI SFP Transceiver, 40km, TX 1310nm / RX 1550nm:8.95 mm
    • Cisco GLC-SX-MM Compatible SFP Module - 1000BASE-SX - 1GbE Multimode Fiber MMF Optic Transceiver - 1GE Gigabit Ethernet SFP - LC 550m - 850nm - Cis:10 mm

Side by side

Differences highlightedShow differences only (off)
Comparison of SFP-7421, SFPGLCSXMMST
46 specifications
Performance3 differ
SFP transceiver typeFiber opticFiber optic
Maximum data transfer rateDiffers155 Mbit/s1250 Mbit/s
Interface typeSFPSFP
Multi-mode fiber (MMF) supportedKnown for oneUnknown — not stated by the sourceYes
Fiber optic connectorLCLC
SFP transceiver standardKnown for oneUnknown — not stated by the sourceSX
Maximum transfer distanceDiffers40000 m550 m
WavelengthKnown for oneUnknown — not stated by the source850 nm
Networking standardsDiffersIEEE 802.3ahIEEE 802.3z
Duplex systemKnown for oneUnknown — not stated by the sourceFull, Half
Digital Diagnostics Monitoring (DDM)Known for oneUnknown — not stated by the sourceNo
Wavelength-division multiplexing (WDM)Known for oneUnknown — not stated by the sourceNo
Single-mode fiber (SMF) supportedKnown for oneYesUnknown — not stated by the source
Tx power (min)Known for one-8 dBmWUnknown — not stated by the source
Tx power (max)Known for one-3 dBmWUnknown — not stated by the source
Auto MDI/MDI-XKnown for oneNoUnknown — not stated by the source
Fiber ports quantityKnown for one1Unknown — not stated by the source
Featuresidentical
Product colourKnown for oneUnknown — not stated by the sourceSilver
Hot-swapYesYes
Mean time between failures (MTBF)Known for oneUnknown — not stated by the source3381761 h
Brand compatibilityKnown for oneUnknown — not stated by the sourceCisco
Compatible productsKnown for oneUnknown — not stated by the sourceGLC-SX-MM
Poweridentical
Power consumption (typical)Known for oneUnknown — not stated by the source1 W
Input voltageKnown for one3.3 VUnknown — not stated by the source
Maximum voltageKnown for one6 VUnknown — not stated by the source
Maximum currentKnown for one0.3 AUnknown — not stated by the source
Certificates1 differ
Compliance certificatesRoHSRoHS
CertificationDiffersCE, FCCCE, FCC, UL, REACH
SafetyKnown for oneEN 60825-1Unknown — not stated by the source
Operational conditions1 differ
Operating temperature (T-T)0 - 70 °C0 - 70 °C
Storage temperature (T-T)-40 - 85 °C-40 - 85 °C
Operating relative humidity (H-H)Differs5 - 95%30 - 70%
Weight & dimensions4 differ
WidthDiffers13.7 mm12 mm
DepthDiffers56.5 mm60 mm
HeightDiffers8.95 mm10 mm
WeightDiffers20 g16 g
Packaging contentidentical
Quantity per pack1 pc(s)1 pc(s)
Packaging data4 differ
Package widthDiffers75 mm90 mm
Package depthDiffers51 mm112 mm
Package heightDiffers130 mm33 mm
Package weightDiffers60 g95 g
Logistics dataidentical
Master (outer) case widthKnown for oneUnknown — not stated by the source344 mm
Harmonized System (HS) code8536901085369010
Master (outer) case lengthKnown for oneUnknown — not stated by the source426 mm
Master (outer) case heightKnown for oneUnknown — not stated by the source354 mm
Products per master (outer) caseKnown for oneUnknown — not stated by the source108 pc(s)

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.

More network transceiver module comparisons

All network transceiver module comparisons