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OEM SKU: DWDM-10GFH-SFP-40I-51 

Multi-Vendor Compatible DWDM 10G Fronthaul SFP+ Module (Tx/Rx Ch. 51 (1536.61 nm)/17-61, ITU Grid: C-Band 100 Ghz, 1.22-10.1376 Gbps, Max. 40km over SMF, 16 dB, Temp. -45 to 85C)

OEM SKU: 10334 

Extreme Compatible Double Fiber 40G QSFP+ Module (Tx/Rx 4 CWDM lines:1271,1291,1311,1331, up to 44.8 Gbps, Max. 150m over MMF (OM4) or 2km over SMF, 2.5dB(MMF)/4.5dB(SMF), Temp. 0-70C, LC connector)