1.6T · OSFP224
1.6T OSFP224 2xDR4
Form factorOSFP224 (OSFP, top closed fin)
Lanes8 × 200G PAM4 (electrical and optical)
Reach and fiber500 m, single-mode fiber
ConnectorDual MPO-12/APC
Max powerup to 32 W
Flagship
1.6T OSFP224 optical transceivers
1.6T OSFP224 modules carry 1.6 Tb/s over 8 PAM4 lanes. Ours reach 500 m on single-mode fiber through dual MPO-12/APC connectors, in two thermal designs: a closed-fin 2xDR4 at 32 W maximum and a closed-top DR8 at 25 W maximum.
1.6T OSFP224 Flagship Lineup
1.6T · OSFP224
1.6T OSFP224 DR8
Form factorOSFP224Lanes8 × 212.5G PAM4Reach and fiber500 m, single-mode fiberConnectorDual MPO-12/APC (16 fibers)Max powerup to 25 W
Compare the two designs
| Parameter | 1.6T OSFP224 2xDR4 | 1.6T OSFP224 DR8 |
|---|---|---|
| Aggregate data rate | 1.6 Tb/s (1600 Gb/s) | 1.6 Tb/s |
| Lanes | 8 × 200G PAM4 (electrical and optical) | 8 × 212.5G PAM4 |
| Center wavelength | 1311 nm (1304.5 to 1317.5) | 1310 nm |
| Maximum reach | 500 m, single-mode fiber | 500 m, single-mode fiber |
| Optical connector | Dual MPO-12/APC | Dual MPO-12/APC (16 fibers) |
| Thermal design | Top closed fin (integrated heat sink) | Closed top |
| Breakout | Not specified | 2 × 800G DR4 or 8 × 200G DR |
| Max power consumption | up to 32 W | up to 25 W |
| Supply voltage | 3.3 V (3.135 to 3.465) | 3.3 V |
Choosing between 2xDR4 and DR8
The 2xDR4 has a top closed fin and draws up to 32 W. The DR8 has a closed top, draws up to 25 W, and breaks out to 2 × 800G DR4 or 8 × 200G DR. Pick the one that fits your thermal design and power budget.
In the glossary: IHS (integrated heat sink), RHS (riding heat sink), DR8, 2xDR4, Breakout
Why 1.6T supply is limited
1.6T OSFP224 optical transceivers are in high demand and limited global supply.
Questions about 1.6T
What is the difference between the 1.6T 2xDR4 and the 1.6T DR8?
Both deliver 1.6 Tb/s across 8 lanes over 500 m SMF via Dual MPO-12/APC. The 2xDR4 features an integrated closed-fin top heat sink and a 32 W maximum envelope. The DR8 features a closed-top housing for cold-plate or riding-heatsink cages, a 25 W maximum power rating, and documented breakout to 2 x 800G DR4 or 8 x 200G DR.
What optical connector does the 1.6T module use?
Both 1.6T OSFP224 modules use a Dual MPO-12/APC optical receptacle supporting 16 active single-mode fibers (8 Tx and 8 Rx).
How many lanes does the 1.6T module use, and what modulation?
The 1.6T 2xDR4 uses 8 lanes of 200G PAM4 (106.25 GBd) on both host electrical and optical interfaces. The 1.6T DR8 operates at 8 lanes of 212.5G PAM4.
What management and diagnostic telemetry does the 1.6T 2xDR4 support?
It implements CMIS with digital diagnostic monitoring (DDM) for case temperature, 3.3 V supply, laser bias, Tx optical power, and Rx optical power, plus host/media loopback, PRBS generators and checkers, hitless CDB firmware upgrade, adaptive Tx equalization, and programmable Rx output swing.
How much power does the 1.6T module consume?
The 1.6T 2xDR4 has a maximum power rating of 32 W. The low-power silicon-photonics 1.6T DR8 closed-top module is rated at 25 W or less. Both operate from a single 3.3 V supply.
What reach and fiber does the 1.6T module support?
Both 1.6T OSFP224 modules reach up to 500 m over parallel single-mode fiber (OS2 SMF).
What wavelength does the 1.6T module operate at?
The 1.6T 2xDR4 operates at a 1311 nm center wavelength within the 1304.5 to 1317.5 nm O-band window. The 1.6T DR8 is specified at 1310 nm.
What is a 1.6T OSFP224 optical transceiver?
It is our flagship pluggable optical transceiver in the OSFP224 form factor that converts 8 lanes of 200G-class electrical signals to optical signals at 1.6 Tb/s aggregate throughput. We produce two configurations: the 1.6T 2xDR4 (32 W max, integrated heat sink) and the 1.6T DR8 (25 W or less, closed-top).
Partner directly with our American division
Discuss 1.6T and 800G distributor allocation, custom White-Label OEM branding, or platform verification directly with Mike Clarke.
Mike Clarkemike@co-pacoptics.com+1 (575) 910-7000