F5 F5-UPG-SFP28-SR Compatible 25GBASE-SR SFP28 Transceiver for rSeries

F5 Networks
SFP28
25G
Duplex
100 m
F5 Networks compatible F5-UPG-SFP28-SR SFP28 Module

F5 Networks compatible F5-UPG-SFP28-SR - Key Features

  • Compatibility: F5 Networks
  • Media Type: Multi-Mode Fiber (MMF) -OM3/OM4/OM5
  • Fiber Count: Duplex
  • Connector: Double LC/UPC
  • Maximum Distance: 100 m
  • Guaranteed Link Budget: 5.3 dB
  • Tx Wavelength: 850 nm
  • Supported Data Rate: 8.5 Gbps - 25.78 Gbps
  • DDM/DOM: Supported
  • Forward Error Correction (FEC): Host FEC Supported
  • Temperature Range: Standard 0°-70°C

F5 Networks F5-UPG-SFP28-SR Price

SKUSKU:25G-SFP28-100-F5
Lead timeIn Stock - Ships Next Business Day
Standard recommended retail price ex VAT:
14.53
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Telecoms & Integrators Globally

F5 Networks compatible F5-UPG-SFP28-SR Specifications

Form Factor
SFP28
Media Type
Multi-Mode Fiber (MMF) -OM3/OM4/OM5
Fiber Count
Duplex
Connector
Double LC/UPC
Maximum Distance
100 m
Guaranteed Link Budget
5.3 dB
TX Wavelength
850 nm
RX Wavelength
850 nm
Supported Data Rate
8.5 Gbps - 25.78 Gbps
Supported Ethernet Applications
10G Ethernet (10.31Gbps), 25G Ethernet (25.78Gbps)
DDM/DOM
Supported
Forward Error Correction (FEC)
Host FEC Supported
Transmitter Type
VSCEL Laser
Average Launch Power (Min) Each Lane
-5 dBm
Average Launch Power (Max) Each Lane
2.4 dBm
Extinction Ratio (Min)
3 dB
Receiver Type
PIN photodiode
Rx Wavelength Bandwidth
20 nm
Average Receiver Sensitivity (Min) Each Lane
-10.3 dBm
Average Receiver Sensitivity (Max) Each Lane
2.4 dBm
Receiver Overload
2.4 dBm
Temperature Range
Standard 0°-70°C
Storage Temperature
-40° to 85°C
Relative Humidity
5 to 85%
Power Consumption (Max)
0.3 W
Power
+3.3V single power supply
Compliance
SFF-8432, CE, Class 1 FDA and IEC60825-1 Laser Safety Compliant, RoHS, SFF-8431, SFF-8472, SFP28 MSA

F5 Networks compatible F5-UPG-SFP28-SR Datasheet

v3

Complete technical specifications and product details

Updated:Apr 7, 2026Format:PDF

F5 Networks compatible F5-UPG-SFP28-SR Description

EdgeOptic's F5-UPG-SFP28-SR compatible is an F5-coded 25GBASE-SR SFP28 transceiver built specifically for the F5 BIG-IP rSeries appliance line. The module matches the F5-UPG-SFP28-SR field upgrade kit specification as published in F5 transceiver techdocs, delivered as a short-reach 25 Gigabit Ethernet optic over multimode fiber for rSeries SFP28 ports. The 'UPG' prefix denotes a field upgrade accessory shipped separately from the chassis rather than bundled with the appliance.

Optical specs: 850 nm VCSEL transmitter, PIN photodiode receiver, TX power -8.4 to +2.4 dBm, RX sensitivity better than -10.3 dBm, 5.3 dB link budget. Reach is 100 m on OM4, 100 m on OM5, and 70 m on OM3 multimode fiber with an LC/UPC duplex connector. The module is IEEE 802.3by Clause 112 compliant and supports RS-FEC per Clause 91. Line rate is 25.78 Gbps, with the 8.5 to 25.78 Gbps electrical range covering 8GFC and 25GbE framing. The 28.1 Gbps figure that appears in some reseller listings refers to the SFP28 electrical SerDes maximum, not the IEEE 802.3by line rate of this module.

Electrical interface follows SFF-8431 and SFF-8432 for the SFP28 cage. Digital diagnostics are SFF-8472 compliant, giving per-port temperature, supply voltage, TX bias, TX power, and RX power visibility through F5OS platform telemetry and standard SNMP polls. Power dissipation is 0.3 W and the hot-swappable cage operates across 0 to 70 C commercial temperature.

Platform scope is rSeries only. The F5-UPG-SFP28-SR is qualified for BIG-IP r2000, r4000, r5000, r10000, and r12000-DS chassis running F5OS. It does not apply to legacy BIG-IP iSeries platforms such as i2600, i4000, i5600, i7800, or i10600, which expose SFP+ 10 Gigabit ports rather than SFP28 cages. The rSeries SFP28 port does not negotiate down to 10G when an SFP+ module is inserted, as documented by F5 in article K000152503; 25G optics are required for link-up on these ports. For iSeries 10G upgrade needs, the F5-UPG-SFP+-R is the correct part number.

F5 optics policy, documented in K8153, states that F5 TAC support is scoped to F5-branded optics. Third-party optics may operate in the port but F5 TAC will request replacement with F5-branded optics before troubleshooting a link fault. EdgeOptic's F5-coded EEPROM presents the module with the F5-UPG-SFP28-SR identity so that F5OS accepts the module at link-up without raising an unsupported-optic event. For rSeries link aggregation groups and high-availability pair commissioning, FEC and auto-negotiation settings must match across every link-up end.

For rSeries migrations from iSeries chassis that need matched F5-UPG-SFP28-SR quantities alongside rSeries-specific DAC and AOC inventory, contact our sales team.

Frequently Asked Questions

Which F5 rSeries platforms support the F5-UPG-SFP28-SR transceiver?

F5 techdocs qualify the F5-UPG-SFP28-SR for BIG-IP r2000, r4000, r5000, r10000, and r12000-DS chassis running F5OS. Legacy BIG-IP iSeries platforms (i2600, i4000, i5600, i7800, i10600, and similar) use SFP+ 10G ports and are not in scope for this 25G SFP28 module.

Is the F5-UPG-SFP28-SR data rate 28.1 Gbps or 25.78 Gbps?

The IEEE 802.3by 25GBASE-SR line rate is 25.78125 Gbps, and that is the rate at which the F5-UPG-SFP28-SR operates for 25 Gigabit Ethernet traffic. The 28.1 Gbps figure sometimes seen on reseller listings refers to the SFP28 electrical SerDes maximum defined by SFF-8402, not to the line rate of this module. The 8.5 Gbps lower bound covers 8GFC framing through the same optic.

Will a third-party F5-UPG-SFP28-SR compatible operate on F5 rSeries without F5OS rejection?

F5 article K8153 documents that F5 TAC limits support to F5-branded optics. F5OS accepts third-party modules at link-up provided the EEPROM identity is recognized. EdgeOptic's F5-UPG-SFP28-SR compatible is programmed with F5-coded EEPROM so the module is accepted on rSeries ports without unsupported-optic events in F5OS platform logs. F5 TAC policy on third-party optics during a support case is unchanged by EEPROM coding, so F5-branded optics remain the right choice when an active F5 service contract is the primary support path.

Can an rSeries SFP28 port fall back to 10G with a 10G SFP+ module inserted?

No. F5 article K000152503 confirms that rSeries 25G SFP28 ports do not operate at 10G when a 10G SFP+ module is inserted. The port will not link. For 10G uplink requirements on rSeries, the iSeries-class SFP+ 10G modules are not a drop-in substitute; either use a 25G SFP28 optic such as the F5-UPG-SFP28-SR on both ends, or plan the link on iSeries-class chassis ports.