Optical Transceivers
Hot-pluggable, MSA-compliant optical transceivers from 1G to 1.6T for AI/HPC clusters, hyperscale data centers, and enterprise networks. SR, DR, LR, and ER optics with multi-vendor compatibility coding available.
// deployed at
// transceivers-1g-sfp
1G SFP
SX / LX / EX / ZX / BiDi / Copper / CWDM
// transceivers-10g-sfp-plus
10G SFP+
SR / LR / ER / ZR / BiDi / DAC pluggable / LRM
// transceivers-25g-sfp28
25G SFP28
SR / LR / ER / BiDi / eSR / CWDM / DWDM
// transceivers-50g-sfp56
50G SFP56
SR / LR / FR / DR / ER / BiDi
// transceivers-100g-qsfp28
100G QSFP28
SR4 / LR4 / CWDM4 / PSM4 / ER4 / SWDM4 / 4WDM
// transceivers-200g-qsfp56
200G QSFP56
SR4 / FR4 / LR4 / DR4 / 2× 100G breakout
// transceivers-400g-qsfp112
400G QSFP112
SR4 / FR4 / LR4 / DR4
// transceivers-400g-qsfp-dd
400G QSFP-DD
SR8 / DR4 / FR4 / LR4 / XDR4 / ER8 / ZR
// transceivers-400g-osfp
400G OSFP
Flat / Finned · SR8 / DR4 / FR4 / LR4
// transceivers-800g-qsfp-dd
800G QSFP-DD800
SR8 / DR8 / FR8 / LR8 / 2× 400G LR4
// transceivers-800g-osfp
800G OSFP
Flat Top / Finned Top · SR8 / DR8 / FR8 / LR8 / 2× LR4
// transceivers-1-6t-osfp
1.6T OSFP
Flat / Finned · 2× 800G FR4 / DR4 / SR8 · DR16
// 400g_form_factor_choice
QSFP-DD vs QSFP112 vs OSFP — pick your 400G cage
Three 400G form factors share the same line rate but split on cage compatibility, thermal envelope, and the path to 800G. Match to your line card and your upgrade plan.
| Spec | QSFP-DD 8× 50G PAM4 in legacy QSFP cage | QSFP112 4× 112G PAM4 in QSFP cage (next-gen) | OSFP 8× 50G PAM4, native heat-sink |
|---|---|---|---|
| Lane count × line rate | 8 × 50G PAM4 | 4 × 112G PAM4 | 8 × 50G PAM4 |
| Cage compatibility | QSFP+ / QSFP28 backward-compatible | QSFP+ / QSFP28 backward-compatible | OSFP only (new cage) |
| Variants we stock | SR8, DR4, FR4, LR4 (multimode + singlemode) | DR, FR, LR (singlemode-forward) | SR8, DR4, FR4, LR4 |
| Max reach | Up to 10 km (LR4) | Up to 10 km (LR) | Up to 10 km (LR4) |
| Thermal envelope | Standard QSFP TDP | Standard QSFP TDP | Higher TDP — native heat-sink space for sustained AI workload |
| Upgrade path | Same cage to QSFP-DD800 (8× 100G PAM4) | Future QSFP112-DD (16× 112G = 1.8T) | Same cage to 800G OSFP and 1.6T OSFP |
| NVIDIA Quantum-2 reference | Common in mixed-vendor builds | Future-forward (newer line cards) | Native reference — Spectrum-X + Quantum-2 |
| Cisco 8000 / Arista 7800R | Standard line-card option | Modern line-card option | Standard line-card option |
| Vendor coding pre-programmed | Yes — no charge | Yes — no charge | Yes — no charge |
| Best for | Mixed fleets where QSFP-DD cage already deployed | Greenfield 400G + planning 800G via 4-lane PAM4 | AI training cluster spine — thermal headroom for sustained traffic |
Per-lane eye verification before shipment on all variants. Custom coding via engineering review. Reach values reflect IEEE 802.3 nominal — actual fiber budget depends on patch panel insertion loss.
// frequently_asked
Frequently asked questions.
- What speeds do you carry?
- Complete portfolio from 1G SFP through 1.6T OSFP — including 10G, 25G, 40G, 100G, 200G, 400G, 800G across modern form factors.
- Which form factors do you support?
- SFP, SFP+, SFP28, SFP56, QSFP+, QSFP28, QSFP56, QSFP112, QSFP-DD, QSFP-DD800, OSFP (400G/800G/1.6T).
- Do you support InfiniBand?
- Yes. InfiniBand NDR (400G), XDR (800G), and GDR (1.6T) variants — vendor-coded for NVIDIA Quantum/Spectrum platforms.
- Are transceivers vendor-coded?
- Yes. Cisco, Arista, Juniper, NVIDIA, HPE, Dell, Broadcom, Intel — plus generic and custom coding for engineering review.
- What's CMIS programming?
- Common Management Interface Spec — the protocol for managing 400G+ optics. We pre-program host/media codes per your platform.
// ready_to_quote
Ready to spec your optical transceivers?
Tell us speed, form factor, vendor coding, and platform. We'll match you to the right modules and configure CMIS.