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 1000BASE CWDM Small Form-Factor Pluggable (SFP) Optics Module, 1570 nm, LC Connector
SFP56,50G-SR, MMF Standard Temperature (0 through 70 degC, Duplex LC/PC Receptacle
POS OC-192 (STM-64) LR-2 pluggable XFP optic (LC connector). Range up to 80 km over SMF.
LevelOne SFP-6551 10Gbps Single-mode BIDI SFP+ Transceiver, 60km, TX 1330nm / RX 1270nm, compatible
1-port 10GBASE CWDM Small Form-Factor Pluggable (SFP+) OpticsModule, Single Mode Fiber (SMF), 40km, 1551 nm, LC Connector, Digital Diagnostic Monitor (DDM)., compatible
MMS4X00-NM 800Gbps Twin-port OSFP 2x400Gb/s InfiniBand and Ethernet Single Mode 2xDR4 500m, compatible
Omada 100GBASE-SR4 QSFP28 Transceiver - SPEC: Dual Rate 103.125Gbps and 41.2Gbps, 850nm MMF (Multimode fiber), MTP/MPO-12, 100m Distance over OM4 at 103.125Gbps (70m Distance over OM3 at 103.125Gbps, 150m Distance over OM4 at 41.2Gbps)
TAA Compliant SFP+ form factor, SR 10Gb optical transceiver, short reach 300m, OM3 MMF, duplex LC, IEEE 802.3ae 10GBASE-SR compliant, compatible
1-port 1000BaseWDM Gigabit Interface Converter (GBIC) with Avalanche Photo Diode Receiver - 1510nm Wavelength., 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.