Transceivers & optics

Cisco QDD-400G-SR8-S 400GBASE-SR8 QSFP-DD Transceiver

Name: Cisco QDD-400G-SR8-S 400GBASE-SR8 QSFP-DD Transceiver
Brand: Cisco
SKU: QDD-400G-SR8-S

SKU QDD-400G-SR8-S · New

Request pricing

We confirm current pricing, stock, and lead time on request.

Request a quote

Free US shipping over $2,500.00
Government Purchase Card (GPC) accepted
Authorized Cisco partner, genuine warrantied hardware
TAA-compliant & DoDIN APL procurement paths
No payment up front, we confirm stock & final total

Overview

The Cisco QDD-400G-SR8-S is a 400 Gigabit Ethernet QSFP-DD multimode optic that drives eight 50G PAM4 lanes over parallel OM3/OM4 fiber using an MPO-16 APC connector, reaching up to 70m on OM3 and 100m on OM4. Beyond native 400G, it supports flexible breakout into eight 50GE or two 200GE links, suiting dense short-reach aggregation in the data center. The module is hot-swappable, standards compliant, and supports digital diagnostics. Genuine Cisco hardware sourced through an authorized partner.

Highlights

400GBASE-SR8 over parallel multimode fiber, MPO-16 APC connector
Up to 70m OM3 / 100m OM4; native 400G or 8x50GE / 2x200GE breakout
Hot-swappable QSFP-DD with digital optical monitoring
Genuine Cisco, authorized-partner sourced for warranty integrity
TAA-compliant procurement path and Government Purchase Card (GPC) accepted
Government Purchase Card (GPC) accepted

Cisco Cisco QDD-400G-SR8-S 400GBASE-SR8 QSFP-DD Transceiver datasheet & specifications

Optical

Standard: 400GBASE-SR8
Form factor: QSFP-DD
Connector: MPO-16 APC
Fiber / wavelength: OM3/OM4 MMF, 850nm
Max reach: 70m (OM3) / 100m (OM4)

Operating

Data rate: 400 Gbps (8x 50G PAM4)
Breakout: 8x 50GE or 2x 200GE
DOM: Yes

Frequently asked questions

How much does the Cisco QDD-400G-SR8-S 400GBASE-SR8 QSFP-DD Transceiver (QDD-400G-SR8-S) cost?

Pricing for the QDD-400G-SR8-S is available on request. Send a quick quote request and a Uniqcli specialist will confirm the current price, stock, and lead time, usually within one business day. Lower pricing is available for volume, GPC, and emergency-acquisition orders.

Is the QDD-400G-SR8-S TAA compliant and available for government and DoD buyers?

Yes. Uniqcli is an authorized Cisco partner and supports TAA-compliant, DoDIN APL-ready procurement of the QDD-400G-SR8-S for US federal, DoD, state, local, education, healthcare, and enterprise buyers. We accept the Government Purchase Card (GPC) and can support FAR-based urgent and emergency acquisitions.

Can I buy the QDD-400G-SR8-S as a single unit or in volume?

Both. Order a single QDD-400G-SR8-S through the cart, or ask about lower pricing for volume orders, Government Purchase Card (GPC) purchases, and emergency or urgent (FAR-based) acquisitions. There is no payment up front: we confirm availability and the final total before invoicing.

Where can I find the QDD-400G-SR8-S datasheet and specifications?

The official Cisco datasheet is available on this page (open the gated datasheet for the full PDF), and the Tech Specs section lists ports, power draw, dimensions, and licensing for the QDD-400G-SR8-S.