Dell 407-BBWK Compatible 25GBASE-SR SFP28 for Dell PowerSwitch S5x00F-ON

EdgeOptic's 407-BBWK compatible is a Dell-coded version of the EdgeOptic 25G-SFP28-100 multi-vendor SFP28 SR transceiver. 407-BBWK is Dell Networking's ordering code for the 25GbE SFP28 SR module used on Dell PowerSwitch S-series 25G access and aggregation platforms. The Dell 407-BBWK ordering code is published as a 25GbE-only SFP28 SR on Dell.com; EdgeOptic's compatible is built to the dual-rate 10G/25G envelope of the underlying 25G-SFP28-100 hardware, so 10G operation depends on the host port's dual-rate SFP28 capability. The module is programmed with Dell-recognized EEPROM vendor and part-number strings so PowerSwitch OS10 reads the optic cleanly through the standard SFP28 management interface.

Optical behavior is 25GBASE-SR per IEEE 802.3by Clause 112 over duplex multi-mode fiber. Line signaling rate is 25.78125 Gbps at 25GBASE-SR; 10GBASE-SR signaling at 10.3125 Gbps per IEEE 802.3ae is supported on dual-rate SFP28 host ports. Reach is 100 m on OM4 and 70 m on OM3, within the SFP28 SerDes envelope defined by SFP28 MSA SFF-8402.

Optical path is 850 nm VCSEL transmitter, PIN photodiode receiver, TX optical power −5 to +2.4 dBm, RX sensitivity better than −10.3 dBm, 5.3 dB link budget, LC duplex connector. Digital diagnostics are SFF-8472 Rev 12.0 compliant, exposing per-module temperature, supply voltage, TX bias, TX power and RX power through the PowerSwitch transceiver-diagnostics interface. Power dissipation is 0.3 W, the module is hot-swappable, and the operating temperature range is 0 to 70°C commercial.

407-BBWK is positioned against Dell PowerSwitch S-series platforms with 25G SFP28 interfaces, including the S5248F-ON and the wider S5x00F-ON range. Verify 407-BBWK against the Dell PowerSwitch transceiver compatibility documentation for your specific PowerSwitch model and OS10 release before specifying the part. Adjacent Dell ordering codes worth knowing during procurement: 407-BBXU is the Dell 25GbE SFP28 SR variant titled 'No FEC' on Dell.com; 407-BCHI is the extended-temperature variant; 407-BCGJ is the dual-rate 10G/25G variant. These are distinct ordering codes; verify the case-temperature rating and rate-class against the Dell product page for your deployment environment, and match the SKU to your Dell quote or BOM.

On FEC, 25G FEC mode is configured at the MAC layer on each link partner and the optical path is agnostic to whether RS-FEC per IEEE 802.3by Clause 108 or BASE-R FEC is negotiated on the host. The PowerSwitch OS10 host FEC profile determines the negotiated mode on the link; confirm the FEC profile on both link partners during commissioning to avoid mismatch on mixed-vendor 25G interconnects. The module is symmetrically compatible with either FEC mode supported on the host port.

Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. For Dell PowerSwitch rollouts where 407-BBWK is the catalog SKU, multi-rack volume pricing on a 25G access-and-aggregation deployment, or compatibility verification against a specific PowerSwitch model and OS10 release, contact our sales team.