These units are clean used pulls and arrive with a 1 year warranty.
1x FS QSFP28-SR4-100G - DOM MTP/MPO MMF Optical Transceiver
MSRP: $99.00ea100GBASE-SR4 QSFP28 Optical Transceiver Module (MMF, 850nm, 100m, MTP/MPO, DOM)

The 100GBASE-SR4 QSFP28 Optical Transceiver Module is designed for use in 100GBASE Ethernet throughput up to 100m over OM4 multimode fiber (MMF) using a wavelength of 850nm via a MTP/MPO-12 connector. This transceiver is compliant with IEEE 802.3bm 100GBASE-SR4 and CAUI-4 standard. Digital diagnostics functions are also available via the I2C interface, as specified by the QSFP28 MSA, to allow access to real-time operating parameters. With these features, this easy to install, hot swappable transceiver is suitable to be used in various applications, such as data centers, high-performance computing networks, enterprise core and distribution layer applications.

SpecificationsPart NumberQSFP28-SR4-100GVendor NameFSForm FactorQSFP28Max Data Rate103.125Gbps (4x 25.78Gbps)Wavelength850nmMax Cable TypeVCSEL 850nmReceiver TypePINTX Power-8.4~2.4dBmMinimum Receiver Power-10.3dBmPowerbudget1.9dBReceiver Overload2.4dBmTypical Power Consumption≤2.5WExtinction Ratio＞3dBDDM/DOMSupportedCommercial Temperature Range0 to 70°C (32 to 158°F)CDR (Clock and Data Recovery)TX & RX Built-in CDRInbuilt FECNoProtocolsIEEE 802.3bm, QSFP28 MSA, SFF-8665, SFF-8636, RoHS, CPRI, eCPRI