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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10GBASE-SR SFP Optics Module, up to 300m over OM3 MMF or 400m over OM4 MMF, compatible
1000Base-BX SFP transceiver with an LC type of interface. This bi-directional transceiver is designed for use over, compatible
QSFP-28, 100G-SR4, parallel MMF 100m, Standard Temperature (0 through 75C), 12-ribbon MMF cable with female multifiber termination push-on (MTP)/physical contact (PC) connectors, compatible
Small Form Factor Pluggable Module supporting 1000BASE-BX, UPLINK, at 40km (TX1310nm / 1550nm). A single fiber is used for both transmit and receive. UPLINK SFP must be matched with DOWNLINK SFP. Juniper, compatible
TAA, 1000LX/LC SFP (40km over SMF, 1310nm), Ext. Temp -40 to 105c, compatible
Cisco - SFP (mini-GBIC) transceiver module - GigE, Fibre Channel - 1000Base-SX - LC - for SN 5428
LANCOM SFP-LR-LC100, 100GBASE-LR4 QSFP transceiver module for LANCOM switch QSFP28 ports, supports 9 µm singlemode fiber up to 10 km, compatible
LANCOM SFP-SR-MPO40 40GBASE-SR/SW QSFP module for connecting QSFP+ ports on LANCOM switches, supports 50 and 125m OM3 and OM4 multimode fiber with MPO connector (maximum distance 300 m)
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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