Test Assured - Every QSA Adapter is tested by a skilled technician in ipolex lab for compatibility and stability before delivery. Stable Performance - low insertion loss, low crosstalk, and low EMI emission; all metal housing design and secure latching mechanism; Operating case Temp range at -20 to 85?. Cost-effective Conversion from QSFP+ to SFP+ Port - Ipolex 40G to 10G Adapter Module allows smooth and cost-effective migration to 40 Gigabit Ethernet by providing an option to use lower-speed. Plug and play, no configuration required. Comprehensive SFP+ Support - This QSA adapter fits all SFP+ optics and cable reaches, including SFP-10G-SR, SFP-10G-LR, SFP-10G-ER, SFP-10G-ZR, 10G SFP+ copper cable, and 10G SFP+ active optical cable (I2C read port information comes from SFP+ port module). Versatile Compatibility - Widely compatible with SFF 8436 and QSFP MSA compliant equipment from Mellanox, Dell, Juniper, Arista, Extreme, NOKIA and more brands.