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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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Cisco SFP-OC12-LR1

OC-12/ STM-4 SFP, Long Reach (40km)

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Cisco 800-41683-02

CPAK-10X10GLR, Transceiver module, 10 x 10Gb/s 10km SMF

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Extreme 3rd 10GB-C01-SFPP

SFP PLUGGABLE COPPER CABLE 1M, compatible

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Brocade-Foundry 57-1000027-01

Brocade 8GB Longwave FC SFP+ Transceiver-Modul 57-1000027-01 - Transceiver

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Allied Telesis 990-005876-90

TAA, SFP+ 300m, Multi mode, Dual fiber [Tx=850,Rx=850], LC conn. (-40 to 85C)

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Extreme 10GBASE-LR-XFP

10 Gb, 10GBASE-LR, IEEE 802.3 SM, 1310 nm Long Wave Length, 10 Km, LC XFP

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Alcatel-Lucent 3FE65107AA

C-SFP 2 channel Pluggable Bidirectional Optical Module, FE BX 1550nm TX / 1310nm RX, -40C to +85C, Duplex LC connector, 10km (11dB)

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LevelOne SFP-6601

LevelOne SFP-6601 10Gbps Copper SFP+ Transceiver, 30m, RJ45

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Lenovo 01DD534

Juniper SFP 1000Base-BX Gigabit Ethernet Optics, Tx 1550nm/Rx 1310nm

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Juniper 3rd SFP-OC12-SR

OC12/STM4 pluggable transceiver (SFP) - short range. Juniper, compatible

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Cisco ONS-SI-622-L1

SFP - OC48/STM16, IR1, S-16.1, 1310nm, SM, LC, itemp

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Avaya 3rd AA1419033-E5

Avaya - SFP (mini-GBIC) transceiver module - GigE - 1000Base-CWDM - LC - up to 70 km - 1470 nm - for Ethernet Routing Switch 25XX, 45XX, 55XX, Avaya Ethernet Routing Switch 2526, 4526, compatible

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Juniper 3rd XFP-10G-CWDM1571

10G CWDM XFP, 8-channel using C-Band, 70km reach, 1571nm for 80 km transmission on SMF, compatible

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Cisco 3rd C3-XENPAK10GB-LR

10GBASE-LRXENPAKModuleforCatalyst3750 Cisco, compatible

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Gigamon SFP-501

Transceiver Gigamon GBIC SFP-501 UTP RJ45 Active Copper 1000Base-T 100m SFP

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HPE 3rd J8176A

HP ProCurve 9300 10 GbE ER Optic 1550nm serial pluggable optic (SC) for up to 40km over single mode fiber. for use with 9300 2 port 10 module. Optic only, module sold separately., compatible

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Alcatel-Lucent 3EM20277AB

Optics SFP GigE 1310 NM Singlemode 10 Kilometer

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Palo Alto 3rd T-S-PLUS-LR

TAA Compliant SFP+ form factor, LR 10Gb optical transceiver, long reach 10Km, SMF, duplex LC, IEEE 802.3ae 10GBASE-LR compliant, compatible

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Ciena NTK592NVE5

CIENA - SFP (mini-GBIC) transceiver module - CWDM, DWDM - LC - OC-3 - 1511 nm - for Nortel Optical Multiservice Edge 6500

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Lenovo 3rd 01KN817

Brocade 40Gb QSFP+ LR4 Optical Transceiver, compatible

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Juniper 3rd 740-031984

SFP+ 10GE pluggable transceiver, SMF, 1550nm for 40KM transmission, compatible

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Lenovo 19K1271

Lenovo SHORT WAVE SFP GBIC - Transceiver

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Ciena 3rd XCVR-040U55

CIENA - SFP (mini-GBIC) transceiver module - 1GbE - 1000Base-BiDi - LC single-mode - up to 40 km - 1550 (TX) / 1310 (RX) nm - for ActivEdge 3920 Service Delivery Switch, compatible

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Ciena XCVR-S40W56

CIENA - SFP+ transceiver module - 10GbE - 10GBase-DWDM - LC single-mode - up to 40 km - channel: 56 - 1532.68 nm

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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.