1.6T · DR4
1.6T OSFP DR8 IHS(Closed-top)
PHOS-TOCSD85M161
Dual OSFP IHS(Closed-top) 500m @ SMF 25W
Spot Available
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1.6T Optical Transceiver
1.6T OSFP DR8 RHS
SKU / P/N: PHOS-TORSD85M161
1.6T DR4 optical transceiver for AI data center, GPU cluster, reseller and system-integrator projects.
Data Rate
8x212.5Gbps
Form Factor
Dual-port OSFP RHS/Flat Top
Standard
DR4
Reach
500m @ SMF
Connector
Dual MPO-12/APC
Max Power
25W
Spot Available
Lead time: 2–4 weeks
Custom bulk order? Beyond 2000 pcs, mixed models or annual supply — use Custom Quote to negotiate your discount offline.
Bulk availability changes frequently. Discounts shown are indicative volume tiers — submit an RFQ to confirm the latest price, lead time and allocation. Prices are provided by quote — no public list price.
Link-up guaranteedCoded to any switch / NIC platform
Lifetime warrantyAdvance replacement
Ships from US warehouseFast, no import hassle
Per-unit testedTest report + power-on video
Product description
This generic-compatible OSFP transceiver is a 1.6Tbps twin-port OSFP flat-top (OSFP-RHS) DR8 single-mode module with dual MPO-12/APC connectors and 200G-PAM4 modulation, supporting link lengths of up to 500 m over single-mode fiber.
The module is a 1.6T 2×800Gb/s twin-port OSFP, 2×DR4/DR8 single-mode parallel 8-channel optical transceiver using two 4-channel MPO-12/APC optical connectors, with each port running at 800Gb/s. The parallel single-mode short-reach 8 channels (2×DR4/DR8) use 200G-PAM4 modulation and reach up to 500 m over eight single-mode fibers.
It is an ideal solution for supercomputing and high-performance computing (HPC), integrating seamlessly into compute and storage infrastructure for efficient high-performance interconnect. The RHS/flat-top version is designed for liquid-cooled switches.
Product highlights
- Integrated low-power DSP for stable performance at scale
- Optimized power budget, max power consumption 25W
- Compliant with OSFP MSA 5.22 and IEEE802.3dj standards
- Supports breakout to lower-rate links for flexible fabric design
- Tested on live switch / NIC platforms to ensure performance, quality and reliability
Applications
- AI data center & GPU cluster interconnect
- Spine-leaf switching fabric
- 1.6T to breakout links in high-density fabrics
- Hyperscale, cloud and high-performance computing networks
Supply status meaning
In stock or short-notice availability
| Data Rate | 8x212.5Gbps |
| Max Data Rate | 8x212.5Gbps |
| Form Factor | Dual-port OSFP RHS/Flat Top |
| Standard | DR4 |
| Lanes | 8 |
| Rate per Lane | 212.5Gbps PAM4 |
| Reach | 500m@SMF |
| Media | SMF |
| Fiber Type | single-mode fiber (SMF) |
| Connector | Dual MPO-12/APC |
| Connector Polish | APC |
| Wavelength | 1311nm |
| Max Power | 25W |
| Operating Temperature | 0 to 70C (32 to 158F) |
| Optical Modulation | 8x200G-PAM4 |
| Electrical Modulation | 8x200G-PAM4 |
| FEC | Inbuilt FEC: Yes |
| IEEE Compliance | IEEE802.3dj |
| MSA Compliance | OSFP MSA 5.22 |
| Protocols | InfiniBand XDR,OSFP MSA 5.22,IEEE802.3dj,CMIS5.3 |
| Host Interface | Dual-port OSFP/ 1.6T |
| Thermal / Shell | RHS / Flat Top |
| Warranty | 5 |
Four bulk tiers — the larger the volume, the better the discount. Actual pricing is confirmed by RFQ based on quantity, customer tier and lead time; there is no single-unit retail.
| Package | Quantity | Volume discount | Best for | |
|---|---|---|---|---|
| Starter Pack | 100 pcs | Base bulk price | Trial order / small channel | Request Quote |
| Growth Pack | 500 pcs | Save ~5% vs. Starter | Reseller / regular supply | Request Quote |
| Project Pack Popular | 1000 pcs | Save ~10% vs. Starter | AI data center project | Request Quote |
| Strategic Pack | 2000 pcs | Save ~15% vs. Starter | Annual / channel agreement | Request Quote |
| Custom bulk order | 2000+ pcs | Negotiated offline | Annual / strategic supply | Contact Sales |
Ask a compatibility question
Need this model to match a specific switch, NIC or OEM coding? Send us the platform and we'll confirm compatibility and coding options.
- Compatible coding for major switch / NIC platforms on request
- Alternative model recommendations
- Breakout and cabling guidance
Supply & compliance FAQ
How do the proposed FCC rules on optical transceivers affect availability?
The FCC rulemaking reported in August 2026 is still a draft. As reported, it would apply to new model authorizations, while models already deployed and shipping would continue to be supplied. Current PhoScale shipments are unaffected, and we hold inventory in our US warehouse. We track the rulemaking closely and publish updates on our Insights page.
Can you provide compliance documentation for your transceivers?
Yes. Every SKU ships with per-unit test reports, and compliance documentation (FCC, FDA laser, RoHS) is available on request as part of our ongoing compliance program.
How do you protect buyers against supply-chain disruption?
Three ways: US-warehouse stock for immediate needs, multi-source manufacturing across tier-one Asian production partners, and allocation planning for project and annual-supply customers. See our Supply Assurance page for details.
What lead times should we plan for on 800G and 1.6T optics?
In-stock models ship from our US warehouse immediately. For volume orders, typical lead times are 2–6 weeks depending on model and quantity — submit an RFQ for a confirmed date against current allocation.
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