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.
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1-port 100GBase ZR4 (RS-FEC required) QSFP28 Optics Module, 80km, LC Connector, Digital Diagnostic Monitor (DDM), 0/70C
40G QSFP+ Parallel Breakout MPO to 4xLC conectors, 1m reach, transceivers not included
LANCOM SFP-AON-1 AON module for direct connection to active fiber optic lines (FTTH). Support of LANCOM devices 1790EF, 18xx series, 19xx series, ISG-1000, ISG-4000, ISG-8000, and LANCOM RandS Unified Firewalls (including 3m LC to SC cable).
100GBASE-LR4 CFP (2nd Generation) Pluggable Module Compliant with IEEE 802.3ba, compatible
1-port OC-192/STM-64 SONET/SDH Optics Module, SR-1 / I-16, Single Mode Fiber (SMF), 2-12km, 1310 nm, LC Connector, Digital Diagnostic Monitor (DDM)
850nm serial pluggable XFP optic (LC), target range 300m over MMF, compatible
10G CWDM XFP, 8-channel using C-Band, 70km reach, 1551nm for 80 km transmission on SMF
QSFP+ form factor, 40Gb active optical cable with 2 transceivers and 10m of cable permanently bonded as an assembly, compatible
Ciena - Expansion module - 100Gb Ethernet / 200Gb Ethernet / 400Gb Ethernet QSFP-DD x 2, compatible
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.