IBM 44X1962 Compatible 10GBASE-SR SFP+ Transceiver
IBM compatible 44X1962 - Key Features
- Compatibility: IBM
- Media Type: Multi-Mode Fiber (MMF) -OM3/OM4/OM5
- Fiber Count: Duplex
- Connector: Double LC/UPC
- Maximum Distance: 400 m
- Average Link Budget: 6.1 dB
- Tx Wavelength: 850 nm
- Supported Data Rate: 1.25 Gbps - 11.32 Gbps
- DDM/DOM: Supported
- Temperature Range: Standard 0°-70°C
IBM 44X1962 Price
IBM compatible 44X1962 Specifications
Form Factor | SFP+ |
Media Type | Multi-Mode Fiber (MMF) -OM3/OM4/OM5 |
Fiber Count | Duplex |
Connector | Double LC/UPC |
Maximum Distance | 400 m |
Average Link Budget | 6.1 dB |
TX Wavelength | 850 nm |
RX Wavelength | 850 nm |
Supported Data Rate | 1.25 Gbps - 11.32 Gbps |
Supported Ethernet Applications | 10G Ethernet (10.31Gbps), Gigabit Ethernet (1.25 Gbps) |
Supported Fiber Channel Applications | 10G Fiber Channel (10.52 Gbps), 1G Fiber Channel (1.0625 Gbps), 2G Fiber Channel (2.125 Gbps), 4G Fiber Channel (4.25 Gbps), 8G Fiber Channel (8.5 Gbps) |
SDH/SONET Standards | STM-64 (9.95Gbps) |
DDM/DOM | Supported |
Tx Wavelength Bandwidth | 20 nm (840-860 nm) |
Rx Wavelength Bandwidth | 20 nm (840-860 nm) |
Minimum Transmitting Power | -5 dBm |
Maximum Transmitting Power | 0 dBm |
Receiver Sensitivity | -11.1 dBm |
Receiver Overload | 0 dBm |
Dispersion | 110 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,RoHS,SFF-8431,SFP MSA |
IBM compatible 44X1962 Datasheet
v3Complete technical specifications and product details
IBM compatible 44X1962 Description
EdgeOptic's 10G-SFP-300 compatible is an IBM-coded 10GBASE-SR SFP+ transceiver that replaces the 44X1962 FRU. The 44X prefix identifies IBM's late-generation System x server optics, and this part number was specified for BladeCenter H and HT blade chassis as well as System x rack servers including the x3550 M3, x3650 M3, and x3850 X5. EdgeOptic programs the EEPROM with IBM-recognized vendor data, so the module registers as a supported component without manual overrides.
System x rack servers used the 44X1962 for 10 GbE uplinks from onboard LOM ports and PCIe network adapters (such as the Emulex VFA and Broadcom 10 GbE cards). In BladeCenter H/HT chassis, the same FRU populated the Cisco Catalyst and Nortel Layer 2/3 GbE switch modules for blade-to-uplink fabric connections. The 44X series represents the final System x-era optics before IBM's server division transitioned to Lenovo in 2014, though many x3550 M3/M4 and x3650 M3/M4 deployments continue operating in production data centers. EdgeOptic's compatible provides a direct replacement for these environments without re-qualification. System x M3-generation servers (x3550 M3, x3650 M3) typically pair the 44X1962 with Broadcom NetXtreme II 57810 or Intel X520-DA2 dual-port adapters installed in PCIe slots, while M4-generation systems (x3550 M4, x3650 M4) added Emulex OCe14102 options. The M4 generation introduced 40GbE QSFP+ ports on some models, but 10GbE SFP+ remained the standard uplink for most rack configurations. The BladeCenter H and HT chassis reference this FRU for 10G switch modules including the Cisco 3110X and BNT Virtual Fabric 10G.
The optical interface uses an 850 nm VCSEL transmitter and PIN photodiode receiver over duplex LC multimode fiber. Link budget is 6.1 dB, supporting 300 m on OM3 and 400 m on OM4 cabling. DDM (Digital Diagnostic Monitoring) reports TX power, RX power, temperature, bias current, and supply voltage in real time. The module conforms to IEEE 802.3ae 10GBASE-SR and SFF-8472 for diagnostic data, with a 0 to 70 degrees C commercial operating range. For bulk pricing or deployment questions, contact our sales team at https://edgeoptic.com/contact.
Frequently Asked Questions
Which IBM System x servers use the 44X1962 SFP+?
The 44X1962 was specified for IBM System x rack servers including the x3550 M3/M4, x3650 M3/M4, and x3850 X5. It was also used in BladeCenter H and HT blade chassis for the Cisco Catalyst and Nortel switch modules installed in those enclosures.
Is the 44X1962 still supported after IBM sold its server division to Lenovo?
The 44X1962 FRU originated under IBM's System x brand. After the 2014 Lenovo acquisition, IBM discontinued the System x FRU program. EdgeOptic's compatible uses the same IBM EEPROM coding, so existing x3550/x3650/x3850 deployments accept it as a supported SFP+ module regardless of whether the server runs IBM or Lenovo firmware.
Does the 44X1962 work with both LOM ports and PCIe network adapters?
Yes. The 44X1962 fits any SFP+ slot on System x servers, including onboard LOM (LAN on Motherboard) ports and add-in PCIe adapters such as the Emulex VFA and Broadcom 10 GbE cards. The IBM EEPROM coding is recognized across all these interfaces.