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Finisar FTCE4516E1PXM 800G DR8 QSFP-DD800 500 m
800 Gb/s 800G DR8 (part listed by Coherent with X temp placeholder) QSFP-DD800 transceiver, 1310nm EML x8, up to 500 m.
- Manufacturer
- Coherent Corp. (formerly Finisar / II-VI)
- Mfr part number
- FTCE4516E1PXM
- Family
- FTCE4516
- Category
- Fiber optic transceiver modules
- Datasheet
- FTCE4516E1PXM datasheet (PDF)
FTCE4516E1PXM specifications
| Attribute | Value |
|---|---|
| Manufacturer | Coherent Corp. (Finisar) |
| Manufacturer part number | FTCE4516E1PXM |
| Product family | FTCE4516 |
| Form factor | QSFP-DD800 |
| Standards / application | IEEE 802.3bs, IEEE P802.3ck; QSFP-DD MSA; CMIS 5.0 |
| Data rate | 850 Gb/s aggregate; 8 x 53.125 GBd PAM4 (106.25 Gb/s PAM4 electrical) |
| Wavelength | 1304.5 to 1317.5 nm |
| Reach | 500 m SMF |
| Connector | MPO-16; 76-pin edge connector |
| Tx output power | −2 dBm min, 4.5 dBm typ (avg launch, per lane) |
| Rx sensitivity | −4.4 dBm (per lane) |
| Rx overload / max input | 5 dBm (overload/damage threshold, per lane) |
| Extinction ratio | 3.5 dB |
| Supply voltage | 3.3 V (3.135–3.465 V) |
| Power dissipation | 17.5 W max |
| Operating temperature | 0 to 70 °C case |
| Diagnostics | CMIS 5.0, I2C-based diagnostics |
| Compliance | QSFP-DD MSA; RoHS; Class 1 laser per IEC 60825-1 |
| Lifecycle | Current production |
Optical and electrical values are from the Finisar / Coherent family datasheet; temperature grade is per part number. Confirm critical values with us before ordering.
About the Finisar FTCE4516E1PXM
The Finisar FTCE4516E1PXM (now a Coherent Corp. product, formerly II-VI) is a QSFP-DD800 800G DR8 (part listed by Coherent with X temp placeholder) optical transceiver for 800 Gb/s links at 1310nm EML x8 over Parallel SMF, MPO16, with reach up to 500 m. It belongs to Finisar's FTCE4516 family, which has 2 orderable variants that differ by temperature grade, latch, receiver build or wavelength channel. Typical uses: 800G AI/ML back-end fabrics, hyperscale spine layers and 800ZR coherent DCI.
- 800G-DR8 QSFP-DD800
- Hot-pluggable
- Supports 8x100GbE breakout
- 2 x 400GbE DR4 operation
- Firmware upgrade through CDB
- PRBS generation and checking
FTCE4516E1PXM: frequently asked questions
What is the Finisar FTCE4516E1PXM?
The FTCE4516E1PXM is a Finisar QSFP-DD800 transceiver for 800G DR8 (part listed by Coherent with X temp placeholder) at 800 Gb/s. Finisar is now part of Coherent Corp. (formerly II-VI), and the part number is unchanged. It is used for 800G AI/ML back-end fabrics, hyperscale spine layers and 800ZR coherent DCI.
What is the maximum distance of the FTCE4516E1PXM?
The FTCE4516E1PXM is specified for up to 500 m over Parallel SMF, MPO16. Long-reach optics may need an attenuator on short links; we can advise based on your link loss.
What is the optical power budget of the FTCE4516E1PXM?
Per the Finisar family datasheet, the FTCE4516E1PXM transmits −2 dBm min, 4.5 dBm typ (avg launch, per lane) and has a receiver sensitivity of −4.4 dBm (per lane). Maximum receiver input is 5 dBm (overload/damage threshold, per lane).
Does the FTCE4516E1PXM support DDM / digital diagnostics?
Yes. CMIS 5.0, I2C-based diagnostics. Your switch can read live temperature, voltage, laser bias and Tx/Rx power.
Which fiber and connector does the FTCE4516E1PXM use?
The FTCE4516E1PXM works at 1310nm EML x8 over Parallel SMF, MPO16. Both ends of a link must use the same optical standard.
Will the FTCE4516E1PXM work in my Cisco, Juniper, Arista or HPE switch?
The FTCE4516E1PXM follows the QSFP-DD800 MSA, so it fits any matching port. It carries Finisar's own EEPROM programming; switches that check the module vendor may need a configuration setting or a vendor-branded optic. Send us your switch model and we confirm before dispatch.
FTCE4516E1PXM vs FTCE4516E1PCM: what is the difference?
Both are in Finisar's FTCE4516 family. They differ in build / application (800G DR8 (part listed by Coherent with X temp placeholder) vs 800G DR8 / 2x400G DR4 / 8x100G). Pick the variant that matches your temperature, latch and wavelength needs.
What does the FTCE4516E1PXM part number mean?
The FTCE prefix marks Finisar's 800G family. The remaining characters identify the optical design and build variant.
Is your FTCE4516E1PXM genuine Finisar?
Yes. Next Gen Networks supplies original Finisar / Coherent modules, not third-party lookalikes or grey-market stock, and shares serial numbers on request.
What is the FTCE4516E1PXM price in India and how do I order?
The Finisar FTCE4516E1PXM price in India depends on quantity, delivery city and current stock. Next Gen Networks supplies it with a GST invoice (input tax credit ready) and pan-India dispatch from New Delhi. Send the part number, quantity and delivery city on WhatsApp +91-7827955775 or email Sales@nextgennetworks.in for a GST quote.
What power does the FTCE4516E1PXM need?
It runs from 3.3 V (3.135–3.465 V) with power dissipation of 17.5 W max.
Documents
NextGen datasheetPDF · specs, FAQ & buying guideManufacturer datasheet
Finisar / Coherent family datasheet
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