The 3CSFP91-OO is compatible with 3Com 3CSFP91. This 1000BASE-SX SFP product supports 1G links up to 550M over multimode fiber. It uses 850nm and a Duplex LC interface and supports digital optical monitoring. ✓ Coded In-House - programmed for the specified compatibility✓ Tested In-House - tested for the specified compatibility✓ Warrantied - Lifetime warranty Technical Specification Compatibility Compatible with 3Com OEM Part Number 3CSFP91 OEM Orderable Number N/A Connector Type Duplex LC DOM Yes Form Factor SFP Media Type MMF Maximum Link Length 550M Speed 1G Interface Standard 3CSFP91-OO Wavelength 850nm Optical Specification Optical Standard 3CSFP91-OO Fiber Type MMF Nominal Wavelength 850nm Maximum Reach 550M Physical Specification Product Shipping Dimensions (HxWxD) 1.2 in. x 2.75 in. x 4.75 in. Product Shipping Weight (lb) 0.4 Operating Temperature 0 to 70°C (commercial) Laser Class Class 1 Miscellaneous ECCN 5A991 HTS Code (US) 8517.62.0090 What's Included 1x transceiver 3Com® is a registered trademark of its respective owner. OEM Optic is not affiliated with, endorsed by, or sponsored by 3Com. This is a third-party compatible product.