While Enotel-branded modules weren't explicitly listed, there are numerous multi-vendor compatible 40GBASE‑ELR4 QSFP+ modules available with the following specs:
Form Factor: QSFP+ (Quad SFP+)
Data Rate: 40 Gbps
Optical Interface: Duplex LC
Wavelength: 1310 nm (±10 nm)
Reach: Up to 20 km over single-mode fiber (SMF)
Diagnostics: DDM/DOM support
Standards Compliance: SFF‑8436, IEEE 802.3ba (40G)
These modules are typically compatible with Cisco, Juniper, Arista, Dell, Huawei, and more.
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