Ultra Short Range (USM) modules in X440-G2

[Grzegorz_Niemi1]

Does X440-G2 supports optical modules: Ultra Short Range (USM) SFP+ on 1310 nm?

Those modules are without standard but few company’s make that kind of modules. They appears to be the 100 metre cable length for OM3.

[Mel78__CISSP__E]

The module above already stated single-mode 9/125um. If you used OM3 cable, you will have high loss.

[Mel78__CISSP__E]

1310nm LASER for OS1/OS2 FO 9/125um FO cable Single mode (LR)
850nm LED for OM3/OM4 50/125um FO cable Multimode (SR)
http://www.fiberonellc.com/the-difference-between-om-multimode-fibers/

so what are your constraints ? OM3 cable already laid ?