Transceivers & optics

Cisco QDD-400G-DR4-S 400GBASE-DR4 QSFP-DD Transceiver

Name: Cisco QDD-400G-DR4-S 400GBASE-DR4 QSFP-DD Transceiver
Brand: Cisco
SKU: QDD-400G-DR4-S

SKU QDD-400G-DR4-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-DR4-S is a 400 Gigabit Ethernet QSFP-DD optic that runs four 100G PAM4 lanes over parallel single-mode fiber to an MPO-12 APC connector, reaching up to 500m. It supports native 400G links as well as 4x100GE breakout to four single-mode-attached endpoints, giving operators flexibility in spine-leaf and breakout topologies. The module is hot-swappable and standards compliant with digital diagnostics. Genuine Cisco hardware sourced through an authorized partner.

Highlights

400GBASE-DR4 over parallel single-mode fiber, MPO-12 APC, up to 500m
Native 400G or 4x100GE breakout from one QSFP-DD port
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-DR4-S 400GBASE-DR4 QSFP-DD Transceiver datasheet & specifications

Optical

Standard: 400GBASE-DR4
Form factor: QSFP-DD
Connector: MPO-12 APC
Fiber: Parallel single-mode (SMF), 1310nm
Max reach: 500m

Operating

Data rate: 400 Gbps (4x 100G PAM4)
Breakout: 4x 100GE supported
DOM: Yes

Frequently asked questions

How much does the Cisco QDD-400G-DR4-S 400GBASE-DR4 QSFP-DD Transceiver (QDD-400G-DR4-S) cost?

Pricing for the QDD-400G-DR4-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-DR4-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-DR4-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-DR4-S as a single unit or in volume?

Both. Order a single QDD-400G-DR4-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-DR4-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-DR4-S.