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Transceivers: Modular connection solutions for your network

Transceivers are key components of modern network technology - they enable flexible data transmission via copper or fiber optics and can be integrated directly into switches, routers, or firewalls. With the right transceiver modules, you can expand your infrastructure with Gigabit or high-speed connections - exactly as needed. 

More about transceivers

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Nvidia 3rd 980-9I33B-00J000

Cumulus Express Transceiver 10G SFP+ ER LC 40km, compatible

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Enterasys 3rd MGBIC-02

1 Gb, 1000Base-T, IEEE 802.3 Cat5, Copper Twisted Pair, 100 M, RJ 45 SFP, compatible

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Extreme X440-24X

24 100/1000BASE-X SFPports, 4 gigabit combo ports (4 SFP ports shared with 10/100/1000BASE-T ports),Summit Stack Stacking ports, 1 AC PSU, ExtremeXOS Edge license, connector for external power

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Alcatel-Lucent 3FE47548AB

XGS Dual Rate SFP+ N1 (C-temp) OLT Gen 2

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Dell 407-BBOK

10GbE SR/SX SFP+ Transceiver LC

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Alcatel-Lucent SFP-GIG-LX-100P

Bundle pack of qty 100 tranceivers SFP-GIG-LX. SFP-GIG-LX 1000Base-LX Gigabit Ethernet optical transceiver SFP MSA). Supports single mode fiber over 1310nm wavelength nominal) with an LC connector. Typical reach of 10 Km on 9/125 m SMF.

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Juniper 3rd 740-038655

SFP 10GE pluggable transceiver, SMF, 1550nm for 80KM transmission Juniper, compatible

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Nortel 3rd AA1419001-E5

1-port 1000Base-SX Gigabit Interface Converter (GBIC), compatible

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Fortinet 3rd FG-TRAN-CFP2-SR10

100GE CFP2 transceivers, 10 channel parallel fiber, short range for all systems with CFP2 Slots, compatible

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TP-Link 3rd SM5110LSB-10

Omada 10Gbase-BX Single-Mode WDM Bi-Directional SFP+ Module - SPEC: LC/UPC Connector, TX:1270nm/RX:1330nm, Single-mode, 10km, compatible

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Juniper QSFP-100G-LRBD-D

QSFP28, 100G LR BiDi, Downstream - Tx 1331nm/Rx 1271nm, SMF 10km, Standard Temperature (0 to 70 deg C), Simplex LC connector

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Juniper JNP-100G-2X50G-2M

QSFP28 to 2xQSFP28 (100G to 2x50G) Copper Breakout Direct Attach Cable 2m (26 AWG) Standard Temperature (0 through 70 degC)

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Cisco 3rd ONS-SE-4G-SM

SFP - 4G FC, 1310nm, LC, SM, compatible

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HPE JG229A

HP X180 10G XFP 1542.14nm DWDM Transceiver

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Cisco 3rd ONS-SC-2G-36.6

SFP - OC-48/STM16, 1536.61nm, 100 GHz, SM, LC, compatible

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JDS 64P0419

SFP OPTICAL TRNASCEIVER DDM, 200/100-M5/M6-SN-I, 1000BASE-LX

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Arista 3rd QSFP-100G-ERL4

100GBASE-ERL4 QSFP100 transceiver, 30 to 40km over single-mode fiber compatible

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Allied Telesis 990-002556-00

SFP Pluggable Optical Module, 1000LX, 2km, Multi mode, Dual fiber [Tx=1310,Rx=1310], LC conn. (0 to 70degree C)

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Dell 3rd 00X9CT

Assembly,Transceiver,QSFP28,100G,BIDI., compatible

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Cisco 3rd 15454-SFP-GE+-LX

SFP - GE/1G-FC/2G-FC/HDTV - 1310nm - SM - LC, compatible

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Juniper 3rd 740-016063

SFP OPTIC MODULE - OC3 15KM REACH, compatible

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D-Link DEM-Q2801Q-SR4

40GBase-SR4 QSFP+ Multi-mode Transceiver, 100 m / 150 mDEM-QX01Q-SR4

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NetApp 332-00347

NetApp TRANSCEIVER Optical SFP 16G FC - Transceiver

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Juniper 740-057315

QSFP+ 40GBase Optics, up to 10km Transmission on Parallel single mode (4X10GE LR up to 10km)

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What is a transceiver and how does it work?

A transceiver (transmitter + receiver) sends and receives data via network cables - in the form of light (fiber optic) or electrical signals (copper). It is plugged into standardized ports such as SFP, SFP+, or QSFP and is often hot-swappable, meaning it can be replaced during operation.

Typical applications:

  • Connecting network components over long distances
  • Upgrading existing networks to higher bandwidths
  • Integration into modular switches, firewalls, or storage systems

Overview of common transceiver formats

SFP & SFP+:

  • SFP module: The standard for 1 Gbit/s connections
  • SFP+ module: Supports up to 10 Gbit/s – ideal for servers or core switches
  • SFP S / SFP SFP+: Combinations or product names in manufacturer documentation, often used synonymously

Other formats:

  • QSFP/QSFP28: For 40G, 100G, or 400G applications
  • SFP28: 25G transceiver for modern data centers

Fiber optic transceivers vs. copper

Fiber optic transceivers enable interference-free transmission over long distances - ideal in data centers, between buildings, or in EMC-critical environments. In comparison, copper transceivers are suitable for short distances (up to 100 m) and standardized cabling.

Advantages of fiber optics:

  • High bandwidths (10G, 25G, 100G+)
  • Low latency
  • Insensitive to electromagnetic interference 

When selecting a fiber optic transceiver module, wavelength, distance, and fiber type (single-mode vs. multi-mode) should be taken into account.

Manufacturer compatibility: Cisco, Juniper, Aruba, Dell, Lenovo, and many more

Transceivers are often manufacturer-specific. it-market offers a wide selection of compatible modules for the following systems:

  • Cisco transceivers: e.g., for Catalyst, Nexus, or Meraki series
  • Juniper transceivers: for EX, QFX, and MX platforms
  • Aruba transceivers: for Aruba switches or Instant-On solutions
  • Dell & Lenovo transceivers: specially validated modules for PowerSwitch and ThinkSystem environments
  • And many other manufacturers

Transceivers: new, used, and refurbished at it-market

At it-market, you will find tested network transceivers for all common manufacturers and requirements. Whether you need an SFP module, a 10G SFP+, a QSFP, or a fiber optic transceiver, we offer new, used, and refurbished transceivers with tested quality.

Benefit from:

  • 3-year warranty for companies
  • Up to €2,500 buyer protection
  • Short delivery times

Do you have any questions? Our sales team is happy to answer your questions about IT hardware and IT remarketing.