1.6T 2xDR4/DR8 OSFP-IHS Finned-top SMF 1310nm 500m Dual MPO-12 Ethernet/InfiniBand Transceiver, MSA Compliant
The VO-1TDR8CM-AA is a 1.6Tb/s OSFP224 DR8 optical transceiver designed for next-generation AI training fabrics and HPC interconnects. It converts 8x 212.5 Gb/s PAM4 electrical lanes into parallel optical signals over single-mode fiber, delivering 500m reach via dual MPO-12 APC connectors in an OSFP224 Type 2 housing with integrated finned-top heat sink (IHS) for air-cooled deployment.
Currently available as engineering samples for switch and NIC qualification ahead of production. The module supports a 2x 400G-DR4 breakout configuration and aligns to the emerging IEEE P802.3dj and OIF CEI-224G-VSR-PAM4 standards.
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- Features
- Specifications
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- FAQs
- Datasheet
- 1.6 Tb/s aggregate data rate (8x 212.5 Gb/s PAM4 lanes)
- OSFP224 Type 2 form factor with IHS finned-top heat sink
- Up to 500m reach over SMF with KP4 FEC
- Dual MPO-12 APC optical interface (parallel SMF)
- Native 2x 400G-DR4 breakout supported
- Aligns with IEEE P802.3dj draft, OIF CEI-224G-VSR-PAM4, OSFP MSA
- CMIS 5.3 management interface with full DDM telemetry
- Single 3.3 V supply; commercial temperature 0 to 70 degC
- RoHS 2 and REACH compliant
- Sample-stage SKU available for switch and NIC qualification
- US-based engineering support from New Jersey HQ
| Category | Optical Transceiver |
|---|---|
| Form Factor | OSFP224 Type 2 (IHS Finned-top) |
| Data Rate | 1.6 Tb/s (8x 212.5 Gb/s PAM4) |
| Wavelength | 1304.5 - 1317.5 nm |
| Fiber Type | Single-Mode Fiber (SMF) |
| Distance | 500m |
| Connector | Dual MPO-12 APC (female ports on cable side) |
| Protocol | Ethernet, InfiniBand |
| Breakout | 2x 400G-DR4 |
| FEC | KP4 (host-side) |
| Management | CMIS 5.3, DDM |
| Power Supply | 3.3 V single supply |
| Max Power | 23.8 W max |
| Temperature | Commercial (0 to 70 degC) |
| Compliance | OSFP MSA, IEEE P802.3dj, OIF CEI-224G-VSR-PAM4, RoHS 2 |
Q: What is a 1.6T OSFP DR8 transceiver?
A: A 1.6T OSFP DR8 is a 1.6 Tb/s optical module in the OSFP224 form factor that uses 8 parallel single-mode fibers at 212.5 Gb/s PAM4 per lane. Reach is 500m on standard SMF with dual MPO-12 APC connectors. It also supports a 2x 400G-DR4 breakout mode.
Q: Is the Vitex 1.6T OSFP DR8 production-ready today?
A: This module is currently available as engineering samples for switch and NIC qualification. Production availability tracks the broader 1.6T ecosystem rollout. Contact Vitex engineering for the latest roadmap and sample availability.
Q: Which switches and NICs support 1.6T today?
A: 1.6T host support is still in early stages across the industry. We are actively validating against early-access 1.6T switch and NIC silicon. Reach out to Vitex engineering for the current compatibility matrix.
Q: Can I break out the 1.6T DR8 into 2x 400G-DR4?
A: Yes. The module exposes two independent 4-lane DR4 optical engines. With a suitable breakout MPO-12 to 2x MPO-12 cable, you get two 400G-DR4 ports for connection to 400G endpoints over up to 500m SMF.
Q: What standards does the Vitex 1.6T DR8 follow?
A: OSFP MSA mechanical and electrical, IEEE P802.3dj for 1.6T Ethernet, OIF CEI-224G-VSR-PAM4 for the host electrical interface, and CMIS 5.3 for module management. KP4 FEC is performed on the host platform.
Q: What fiber and patch cable do I need?
A: Standard single-mode fiber (G.652.D) with MPO-12 APC connectors on both ends. The transceiver MPO ports are male (pinned), so patch cables must be female (unpinned) on the transceiver side. See the Vitex M12FOM4 series for matched fiber assemblies.
Q: Why buy 1.6T optics from Vitex?
A: Vitex delivers in.
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