3Com 3CSFP91 Compatible 1000BASE-SX SFP
HP compatible 3CSFP91 - Key Features
- Compatibility: HP
- Media Type: Multi-Mode Fiber (MMF)
- Fiber Count: Duplex
- Connector: Double LC/UPC
- Maximum Distance: 550 m
- Average Link Budget: 7.5 dB
- Tx Wavelength: 850 nm
- Supported Data Rate: 1.063 Gbps - 1.25 Gbps
- DDM/DOM: Supported
- Temperature Range: Standard 0°-70°C
HP 3CSFP91 Price
In Stock - Ships Next Business DayHP compatible 3CSFP91 Specifications
Form Factor | SFP |
Media Type | Multi-Mode Fiber (MMF) |
Fiber Count | Duplex |
Connector | Double LC/UPC |
Maximum Distance | 550 m |
Average Link Budget | 7.5 dB |
TX Wavelength | 850 nm |
RX Wavelength | 850 nm |
Supported Data Rate | 1.063 Gbps - 1.25 Gbps |
Supported Ethernet Applications | Gigabit Ethernet (1.25 Gbps) |
Supported Fiber Channel Applications | 1G Fiber Channel (1.0625 Gbps) |
DDM/DOM | Supported |
Tx Wavelength Bandwidth | 20 nm (840-860 nm) |
Rx Wavelength Bandwidth | 20 nm (840-860 nm) |
Minimum Transmitting Power | -9.5 dBm |
Maximum Transmitting Power | 3 dBm |
Receiver Sensitivity | -17 dBm |
Receiver Overload | -3 dBm |
Dispersion | 110 ps/nm ps/nm |
Transmitter Type | VSCEL Laser |
Receiver Type | PIN photodiode |
Temperature Range | Standard 0°-70°C |
Power | +3.3V single power supply |
Compliance | CE, Class 1 FDA and IEC60825-1 Laser Safety Compliant, INF-8074i, RoHS, SFP MSA |
HP compatible 3CSFP91 Datasheet
v3Complete technical specifications and product details
HP compatible 3CSFP91 Description
EdgeOptic's 3CSFP91 compatible is a 3Com-coded version of the EdgeOptic 1.25G-SFP-550D multi-vendor 1000BASE-SX transceiver. It runs Gigabit Ethernet at 1.25 Gbps (IEEE 802.3z) and 1G Fibre Channel SW at 1.0625 Gbps over duplex multimode fiber, with an 850nm VCSEL transmitter and a PIN photodiode receiver.
A 7.5 dB optical budget carries the link 550m over OM2 multimode fiber (50/125, 500 MHz·km) and 275m over OM1 (62.5/125). The module uses a duplex LC/UPC interface and supports DDM/DOM diagnostics for live monitoring of optical power, bias current, and temperature. It operates over the commercial 0 to 70°C range, built to the INF-8074i SFP MSA, +3.3V supply, CE/RoHS, Class 1 laser safety.
3CSFP91 is the 3Com ordering code for this 1G SX SFP. 3Com's networking business was acquired by HP in 2010, so the part is often searched under both the 3Com and HP brands today. EdgeOptic codes the EEPROM with vendor-recognized data so the module identifies correctly and is accepted on 3Com and HP switch platforms. Confirm the exact ordering code and transceiver table for your chassis in the vendor's equipment documentation before ordering.
Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. For ordering-code confirmation or platform questions, contact our sales team.
Frequently Asked Questions
Is the 3CSFP91 an approved SFP on 3Com Switch 4500 and 4210 series?
Yes. 3CSFP91 is listed as an approved 1000BASE-SX SFP in 3Com's own Switch 4500 and Switch 4210 getting-started documentation. Those manuals are legacy, so verify the exact model and firmware against the current 3Com/HP transceiver table for your chassis, or contact our sales team for a compatibility check.