Before evaluating compatibility, confirm the module spec matches your fiber plant and switch requirements.
| Parameter | Specification |
|---|---|
| Form Factor | QSFP28 |
| Data Rate | 100G (4 x 25G NRZ) |
| Wavelength | 850nm (VCSEL) |
| Connector | MTP/MPO-12 (male) |
| Fiber Type | OM3 / OM4 multimode |
| Max Reach (OM3) | 70m |
| Max Reach (OM4) | 100m |
| TX Power Range | -8.4 to +2.4 dBm |
| RX Sensitivity | -9.5 dBm (min) |
| Power Consumption | 3.5W (max) |
| DDM / DOM Support | Yes |
| Operating Temperature | 0°C to 70°C (commercial) |
| Voltage | 3.3V |
| Encoding | 64B/66B |
DDM support means you can read real-time TX power, RX power, temperature, and voltage directly from the Huawei CLI — useful for fault isolation and capacity planning on production links.
The MTP/MPO-12 connector uses 8 of the 12 fiber positions: 4 transmit and 4 receive. Standard MTP-12 trunk cables work without adapters.
The CE16800 is Huawei's flagship spine switch for hyperscale data centers, supporting up to 800T of switching capacity. QSFP28 line cards accept 100G SR4 modules in standard slots. A drop-in compatible SR4 module programmed with the correct Huawei EEPROM values loads without "unsupported transceiver" warnings and reports DDM data through the standard display transceiver command.
The CE12800 series is widely deployed as a data center core or aggregation switch. QSFP28 SR4 modules are used in CE12800 100G line cards for top-of-rack to spine links and storage fabric interconnects. Switch-verified compatible modules on this platform pass the Huawei transceiver authentication check and show clean optical power readings at link-up.
These access-layer switches are common in enterprise and campus data center environments. Select CE6800 and CE5800 models support QSFP28 ports, and SR4's 100m reach on OM4 covers in-rack and cross-row runs in most deployments without issue.
Huawei's S series campus and enterprise aggregation switches include QSFP28 port support on high-density line cards. SR4 is the standard choice for inter-chassis links in campus core deployments where distances stay under 100m.
Compatible does not mean plug-and-play without preparation. The module's EEPROM must be coded with the correct vendor ID, part number, and serial number fields that Huawei VRP firmware expects. Modules that ship with generic or mismatched EEPROM data will either generate warnings or fail to bring up the link.
When evaluating a third-party supplier, ask specifically whether the module has been tested on the Huawei platform you are running — not just "Huawei-compatible" as a general claim. Request the VRP firmware version used during testing and the output of display transceiver interface from the test switch. That output confirms DDM data is being read correctly and that no error flags are set.
Huawei's OEM QSFP28 SR4 module (part number 02311YGT or equivalent) lists at $300 to $600 per unit depending on the reseller channel and regional pricing. At that price point, a 48-port 100G switch fully populated with SR4 modules adds $14,400 to $28,800 in optics cost alone, before cables.
Factory-direct compatible modules remove the distributor markup entirely. The price difference runs 60 to 90 percent below Huawei OEM list, depending on volume, because the supply chain goes from the optical component manufacturer directly to you.
That is not a vague claim. The cost structure is different: no Huawei brand licensing fee, no regional distributor margin, no VAR markup. The optical components inside a compatible SR4 module use the same VCSEL array technology and PIN photodetector arrays as OEM units. What changes is the EEPROM coding, the housing label, and the supply chain.
On a 100-unit order at 70 percent below OEM list, the savings on a single switch build can exceed $20,000. Across a multi-rack deployment, the TCO difference is material.
Factory-direct suppliers, including HYTOPTODEVICE, structure pricing in tiers. Common breakpoints are 1 to 9 units (single-unit price), 10 to 49 units (first volume tier), 50 to 99 units (mid-volume), and 100-plus units (bulk rate). Per-unit price at 100-plus units is typically 15 to 25 percent lower than the 1 to 9 unit price, on top of the baseline discount versus OEM.
At orders above 50 units, there is room to negotiate beyond unit price:
A 48-port CE12800 line card fully populated with SR4 modules is a common order size. At 100-plus unit pricing, the cost difference versus Huawei OEM can fund a second partially populated line card. For ISPs or data center operators building out multiple PoPs simultaneously, the math compounds quickly.
If your procurement cycle runs quarterly, ordering in one batch rather than four smaller orders typically moves you into a better pricing tier and reduces per-shipment logistics cost.
If you are a VAR, regional distributor, or managed service provider, white-label QSFP28 SR4 modules let you ship product under your own brand without building a manufacturing relationship from scratch.
HYTOPTODEVICE offers OEM/ODM support including custom firmware coding, white-label housing, and private-label documentation. For resellers building a branded optics line, that means your customers receive modules coded to your part number and brand name — compatible with Huawei, Cisco, Arista, and Juniper platforms — at a margin structure that works for your business.
Custom firmware coding is the specific capability that matters here. It is not just relabeling. The EEPROM is programmed to your specifications, so the module presents correctly in the switch CLI under your brand's part number. That is the difference between a white-label product and a reboxed generic.
A supplier that stocks only SR4 creates a problem the moment your next project needs LR4 for cross-building runs, CWDM4 for intermediate reach, or 400G and 800G spine capacity on the same fabric.
HYTOPTODEVICE's catalog runs from 1.25G SFP to 800G QSFP-DD, covering every major form factor. The 800G QSFP-DD DR8 Arista-compatible module is in stock. The 200G QSFP56 SR4 Cisco-compatible module is in stock. CWDM and DWDM variants are available from 10KM to 160KM reach. A single supplier relationship covers your current 100G SR4 procurement and your future 400G or 800G upgrade — no second vendor required.
For procurement leads managing multi-vendor environments, that catalog breadth reduces the number of supplier relationships to maintain and simplifies the qualification process.
Q1: Will a third-party QSFP28 SR4 work on a Huawei CloudEngine switch without showing an unsupported transceiver warning?
A1: Yes, if the module's EEPROM is correctly coded for the Huawei platform. VRP firmware checks vendor ID and part number fields during link-up. A module coded with the correct Huawei-expected values loads without warnings and reports DDM data through standard CLI commands. Generic or incorrectly coded modules will trigger warnings or fail to bring up the link.
Q2: What fiber and connector type does the QSFP28 SR4 require?
A2: The QSFP28 SR4 uses an MTP/MPO-12 male connector and requires OM3 or OM4 multimode fiber. Maximum reach is 70m on OM3 and 100m on OM4. Standard MTP-12 trunk cables work without adapters.
Q3: Does the compatible QSFP28 SR4 support DDM on Huawei switches?
A3: Yes. On Huawei VRP, use display transceiver interface [interface-id] to read real-time TX power, RX power, temperature, and voltage from the module. This works on CE16800, CE12800, CE6800, and CE5800 platforms when the module is correctly coded.
Q4: How much cheaper is a compatible QSFP28 SR4 versus the Huawei OEM module?
A4: Factory-direct compatible modules are priced 60 to 90 percent below Huawei OEM list. The savings come from removing distributor and brand licensing markups from the supply chain. The optical components use the same underlying VCSEL and PIN photodetector technology as OEM units.
Q5: What is the minimum order quantity for volume pricing on QSFP28 SR4 modules?
A5: Volume pricing typically starts at 10 units, with the best per-unit rates at 100-plus units. Single-unit orders are also available. For bulk procurement, contact the supplier directly to confirm tiered pricing and lead time commitments for your specific quantity and mix.
Q6: Can I get QSFP28 SR4 modules white-labeled under my own brand for resale?
A6: Yes. OEM/ODM white-label options are available, including custom EEPROM firmware coding to your part number and brand name, compatible with Huawei and other major platforms. This is available at mid-market volumes and is distinct from simple relabeling.
display transceiver commands, and deliver stable 100G high-density data center spine switching performance consistent with OEM modules.The 100G QSFP28 SR4 is a straightforward procurement decision when you have verified compatibility data and a supplier that codes modules correctly for your specific Huawei platform. The spec is standard. The savings versus OEM list are consistent. The variable is supplier quality and EEPROM coding accuracy.
For verified Huawei-compatible QSFP28 SR4 modules, volume pricing, and OEM/ODM white-label options, visit hytoptodevice.com.
