Twenty-two QSFP-family models: 100G QSFP28 at the head, 40G QSFP+ and 50G QSFP28 beside it, 400G QSFP-DD above — plus the family's 25G SFP28 modules as the page's second section.
The QSFP shelf is where the catalogue's data-centre-grade optics live. Its head is the 100G QSFP28 family — eight documented models including a 100G QSFP28 1310nm 10km LR4 unit, the workhorse reach/wavelength combination of aggregation and data-centre interconnect. Around it the shelf keeps the family's other generations in their places: 40G QSFP+ (five models) for the installed 40G plant, 50G QSFP28 (four) for the 25G-lane generation of servers and 5G transport, and 400G QSFP-DD (five) at the top for spine builds.
The page's second section, served by the table's tail, is 25G: the family's 25G SFP28 modules (documented in the HiSilicon family at 20 km and in LR 10 km and LR BiDi 10 km variants). 25G belongs on this page rather than the SFP page for a lane-architecture reason: a 100G QSFP28 port breaks out to 4×25G SFP28, and the two rates are routinely designed together in the same aggregation drawing.
| Model (official product name) | Series | Documentation |
|---|---|---|
| 100G QSFP28 1310nm 100m SR4 LC SFP Module Optical Transceiver | LNK-QSFP28-SR4 | Specification captured from the official product page |
| 100G QSFP28 1310nm 10km LR4 LC CWDM4 SFP Module Optical Transceiver | LNK-QSFP28-100GB-LR4-10KM-C | Specification captured from the official product page |
| 100G QSFP28 1310nm 10km LR4 LC SFP Module Optical Transceiver | — | Full specification confirmed per model at quotation |
| 100G QSFP28 1310nm 20km LR4 LC SFP Module Optical Transceiver | — | Full specification confirmed per model at quotation |
| 100G QSFP28 1310nm 40km ER4 LC Lite SFP Module Optical Transceiver | — | Full specification confirmed per model at quotation |
| 100GBASE-DR1 QSFP28 1310nm 500m Transceiver | — | Full specification confirmed per model at quotation |
| 100GBASE-FR1 QSFP28 1310nm 2KM Transceiver | — | Full specification confirmed per model at quotation |
| 100GBASE-ZR4 QSFP28 1295-1309nm 80KM Transceiver | — | Full specification confirmed per model at quotation |
| 40G 10km QSFP+ Transceiver LC Singlemode | LNK-QSFP-LR4 | Specification captured from the official product page |
| 40G 10km QSFP+ Transceiver MTP/MPO Singlemode | LNK-QSFP-LR4M | Specification captured from the official product page |
| 40G 40km QSFP+ Transceiver Duplex LC Singlemode | — | Full specification confirmed per model at quotation |
| 40Gb/s 100m QSFP+, Bi-Di, Duplex LC | — | Full specification confirmed per model at quotation |
| 40Gb/s 2 KM QSFP+ Transceiver | — | Full specification confirmed per model at quotation |
| 50G ER BIDI QSFP28 40KM Transceiver | — | Specification captured from the official product page |
| 50G ER QSFP28 40KM Transceiver | — | Specification captured from the official product page |
| 50G LR BIDI QSFP28 10KM Transceiver | — | Full specification confirmed per model at quotation |
| 50G LR QSFP28 10KM Transceiver | — | Full specification confirmed per model at quotation |
| 400GBASE-DR4 QSFP-DD 1310nm 500m Transceiver | — | Specification captured from the official product page |
| 400GBASE-DR4+ QSFP-DD 1310nm 2km Transceiver | — | Specification captured from the official product page |
| 400GBASE-ER8 QSFP-DD 1310nm 40km Transceiver | — | Full specification confirmed per model at quotation |
| 400GBASE-FR4 QSFP-DD 1310nm 2km Transceiver | — | Full specification confirmed per model at quotation |
| 400GBASE-LR8 QSFP-DD 1310nm 10km Transceiver | — | Full specification confirmed per model at quotation |
| Huawei HiSilicon E-link SFP 2488M (Tx) 1244M (Rx) GPON OLT Class D 20km (LNK-OM5070AX300) | — | Full specification confirmed per model at quotation |
| Huawei HiSilicon E-link SFP 2488M(Tx)1244M(Rx) GPON OLT Class C+ 20 km (LNK-OM5070AX200) | LNK-OM5070AX200 | Specification captured from the official product page |
100G QSFP28 (8) + 40G QSFP+ (5) + 50G QSFP28 (4) + 400G QSFP-DD (5) = 22 QSFP-family models; the table's tail carries the family's 25G SFP28 modules (from the HiSilicon family) as the in-page section on 25G. Page main term is the short form '100g qsfp28' per the range plan.
'100G QSFP28' names a form factor and a rate, not a module. The specification is the reach class and wavelength plan (the documented anchor is 1310 nm / 10 km LR4). State link length and fiber type for every 100G line in the inquiry.
If QSFP28 ports will break out to 25G SFP28 tails, say so: the far-end 25G modules (LR and BiDi variants documented in-family) join the same quotation, and cable/fanout choices are validated together.
QSFP-DD 400G modules serve spine designs with their own power and thermal realities. Treat 400G lines as their own inquiry section — host models named explicitly — rather than an extension of the 100G list.
The documented anchor here is the LR4 pattern (1310 nm, 10 km, single-mode). Short multimode reaches are a different module class; state the plant (fiber type and distance) and the class follows — do not let a headline rate substitute for it.
Many hosts negotiate QSFP28 ports down to 40G QSFP+ modules; whether yours does is a host property. Name the host in the inquiry and the combination is confirmed rather than assumed.
Because they are designed together (4×25G breakouts) and stocked together. The SFP family page covers the sub-25G and PON shelves; this page owns the QSFP lane architecture end to end.
Send the model name, the distance, the fiber type and the quantity. We will confirm the matching transmitter/receiver pairing, the optical module and the full specification of the exact model in writing before you pay.