If you are looking to buy QSFP, QSFP28 or QSFP-DD modules in the UAE, this guide gives you everything needed to make the right decision — including compatibility tips, pricing, UAE delivery times, and why SFPS. AE is becoming the country's leading authority for optical. Cisco QSFP-DD and OSFP 800G ZR/ZR+ digital coherent optics modules enable 800G traffic over amplified Dense Wavelength-Division Multiplexing (DWDM) links up to 120 km for 800ZR and over 1000 km for 800G ZR+. As the UAE accelerates its expansion in AI, cloud computing, hyperscale data centres, FTTH, and national digital infrastructure, the demand for 40G, 100G, 200G and 400G optical. This article provides a comprehensive comparison of mainstream optical transceivers, including SFP, SFP+, QSFP+, QSFP28, and QSFP-DD. It explains their technical differences, compatibility considerations, and ideal use cases to help readers choose the right module for enterprise and data center. Optical modules are optoelectronic devices that perform photoelectric and electro-optic conversions. The optical signals back into electrical signals. Optical modules are classified by their packaging forms, with common types including SFP, SFP+, SFP28, QSFP+, QSFP28, QSFP56, QSFP-DD, QSFP112, and. Smartoptics QSFP-DD transceivers provide cost-efficient 400G and 800G optical networking. QSFP-DD (Quad Small Form-Factor Pluggable Double Density) transceivers double the number of high-speed electrical interfaces in QSFP to achieve 400G Ethernet speeds – and double them again to reach 800G. Pro Tip: In 2025, QSFP112 is gaining traction as a bridge technology.