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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QSFP+ 40GBase-LR4 40 Gigabit Optics for up to 10km transmission on SMF, compatible
1-port 10GBASE CWDM Small Form-Factor Pluggable (SFP+) Optics Module, Single Mode Fiber (SMF), 40km, 1591 nm, LC Connector, Digital Diagnostic Monitor (DDM)., compatible
100 Mb, 100Base-FX, IEEE 802.3 SM, 1310 nm Long Wave Length, 10 KM, LC SFP (For use in the 7K-2XFP-6MGBIC and 7G-6MGBIC-B only)
LevelOne SFP-4320 1.25Gbps Single-mode BIDI Industrial SFP Transceiver, 10km, TX 1550nm / RX 1310nm, -40 degree C to 85 degree C, compatible
OSFP800, 2X400G FR4, 2km, Standard Temperature (0 through 70 deg C), Duplex LC connector
10-Gigabit Ethernet 10Gbase Optical Interface Specifications Juniper, compatible
10 Gigabit copper transceiver (SFP+) 10GBase-T 10 Gigabit ethernet Transceiver (SFP MSA).
Omada 1 Meter 25G SFP28 Direct Attach Cable - SPEC: Up to 1 m Distance, Support data rate of 25Gbps and 10Gbps, Compatible with 25G SFP28 Slot and 10G SFP+ Slot, Plug and Play
1-port 1000BASE CWDM Small Form-Factor Pluggable (SFP) Optics Module, 1490 nm, LC Connector, compatible
SFP+ form factor, SR 10Gb optical transceiver, short reach 300m, OM3 MMF, duplex LC, IEEE 802.3ae 10GBASE-SR compliant.
QSFP+, 40G, SMF 10km, Standard Temperature (0 through 70 DegC), Duplex LC connector
1-port OC-12/STM-4 SONET/SDH Optics Module, LR-2 / L- 4.2, Single Mode Fiber (SMF), 80-85km, 1550 nm, LC Connector, Digital Diagnostic Monitor (DDM), Extended Temperature -40/85C.
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
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