z-QUAD SMALL FORM-FACTOR
PLUGGABLE PLUS (zQSFP+ OR
QSFP28/56) INTERCONNECT SYSTEM
Quick Reference Guide
te.com/products/QSFP
DATA AND DEVICES /// zQSFP+ (QSFP28/56) INTERCONNECTS
zQSFP+ (QSFP28/56) Interconnects
Introducing zQSFP+ Interconnect System
TE Connectivity’s (TE) zQSFP+ interconnects offer an increased data rate of 28 Gbps NRZ and 56 Gbps PAM-4 in an industry
standard, scalable design that allows for backwards compatibility with QSFP+ cables and transceivers, providing a simple
upgrade path from 10 Gbps to 28 Gbps and 56 Gbps. The complete portfolio of interconnects deliver a large range of simple and
customizable design options to meet most customer requirements.
Features and Benefits
Increased Data Rates
•
Data transfer rates of 28 Gbps NRZ and 56 Gbps PAM-4
•
Supports Ethernet and InfiniBand (IB) Enhanced Data Rate (EDR) requirements
•
Supports single channel, dual channel and quad channel implementations
Industry Standard and Customizable Design
•
Industry standard interface
•
Backwards compatible with QSFP+ cables and transceivers
•
Improved loss budget for optics and copper cables at 10 Gbps
Comprehensive Portfolio and Inventory
•
Dual sourced product available through Molex, LLC.
•
Features behind and through bezel cages with various lightpipe and heat sink options
•
Well-stocked distribution channel
Improved EMI Performance
•
Increased data rates make EMI protection more challenging
•
Provide excellent EMI protection through 56 Gbps
Applications
Product Applications
Applications by Protocol
•
Network Interface
•
50, 100 and 200 Gigabit Ethernet
•
Switches
•
•
Servers
100 Gbps InfiniBand (IB) Enhanced Data Rate
(EDR) requirements
•
Routers
•
128G Fibre Channel
•
Wireless Base Stations
•
25G/50G Consortium
•
Test and Measurement Equipment
•
25G NRZ and 56G PAM-4
DATA AND DEVICES /// zQSFP+ (QSFP28/56) INTERCONNECTS
PAGE 2
zQSFP+ (QSFP28/56) Interconnects
Enhanced zQSFP+ (QSFP28/56) Cages
EMI Enhanced
Thermally Enhanced
External riding heatsink
High-performance springs
are both flexible and strong
Improved springs
more fully seal
connector from EMI
Internal riding
heatsink
Reference base part number 2170709 on page 7
Lower Assembly
Insertion Force
Improved EMI
Performance
Help increase assembly
throughput by providing
a 55% reduction in force
needed to insert the line
card into the front bezel.
The reduction in insertion
force makes assembly
easier, faster, and reduces
the risk for damage which
can lead to reduced EMI
performance.
EMI sealing
enhancements on
these new cages
provide 10 dB
EMI performance
improvement over
current QSFP28
products.
Intel Omni-Path Architecture
Air vent
holes
Reference base part numbers 2299940, 2299870,
2299924, 2321666 and 2321630 on page 7
Lower Port Cooling
Optimized Airflow
Internal riding heatsink
in the seperator
plate area provides
enhanced cooling to
the lower ports and a
12-15oC improvement
over standard stacked
zQSFP+ cages.
External riding heatsinks
on the upper port are
optimized for airflow
direction (also available
without heatsinks).
Air vent holes allow for air
to pass through and exit
out the sides and rear of the
cage.
Stacked Belly-to-Belly
Image source: Intel
Image source: Intel
Reference part numbers 2227670-7, 2300281-1,
2170704-1 and 1551920-2 on page 7
Reference base part numbers 2314790, 2308171 and
2315050 on page 7
Designed for Intel Omni-Path Architecture
High Density
Low Cost
These zQSFP+ 2x2 and 1x2 cages are specifically
designed for Intel Omni-Path Architecture
(OPA) switch architectures, and 1x1 zQSFP+
cages for OPA NIC cards. Designing with these
cages allows access to proven technology to
support high performance applications.
Certain stacked cages can
be used in belly-to-belly
applications to support high
density 2RU+ box designs and
switch designs using next-gen
48 and 64 silicon ports.
Using a stacked belly-tobelly design enables single
PCB architecture versus two
PCBs per line card, saving
significant system costs.
DATA AND DEVICES /// zQSFP+ (QSFP28/56) INTERCONNECTS
PAGE 3
zQSFP+ (QSFP28/56) Interconnects
1xN Mechanical Options
Bezel Mount
•
Behind bezel cages use a gasket applied by the
customer to the cage or bezel sheet metal
•
EMI spring versions and gasket versions share
the same PCB footprint and bezel cutout
•
TE offers low insertion force EMI springs to assist
in assembly of high density products
Through Bezel with EMI
Springs
Through Bezel with EMI
Gasket
Behind Bezel (customer
applies gasket)
Lightpipe Options
Single
Dual
•
TE offers 1, 2, 4 or 8 lightpipe options per port
•
Standard lightpipes are designed to support up to 1.00mm
height 0805 style LEDs
•
Lightpipes are shipped with an organizer to prevent optical
cross-talk
Quad
Heat Sink Styles
•
TE offers SAN, LAN and Networking height
heatsinks
•
Custom heatsinks are available upon
request
•
Height is max height of assembly from
PCI (13.7mm height)
SAN (16.0mm height)
NET (23.0mm height)
surface of PCB
Rear EONs
2 rear EONs
1 rear EONs
0 rear EON’s
DATA AND DEVICES /// zQSFP+ (QSFP28/56) INTERCONNECTS
•
Rear pins are used to improve EMI grounding and
cage retention to the PCB
•
TE offers all styles outlined in the SFF-8662
footprint
•
Rear EONs will be dependent upon the
customer’s routing preference and technical
specifications
PAGE 4
zQSFP+ (QSFP28/56) Interconnects
2xN Mechanical Options
Bezel Mount
•
Through bezel assemblies with EMI
springs or EMI gaskets are available
•
Custom gasketing options are available
upon request
Through Bezel with EMI Springs
Through Bezel with EMI Gasket
Lightpipe Options
Single (per port)
Dual (per port)
•
TE offers zero, single and dual lightpipe options per port
•
For higher lightpipe counts, the customer may add
lightpipes underneath their PCB to indicate lower port
activity
•
The thermal footprint design offers 4x lightpipes assembled above the cage
•
Lightpipes are designed to support up to 0.80mm height
0805 style LEDs
Rear EONs
•
Rear pins are used to improve EMI grounding and
cage retention to the PCB
•
TE offers zero or three rear pins per port column
•
Rear EONs will be dependent upon the
customer’s routing preference and technical
specifications
3 rear EONs
DATA AND DEVICES /// zQSFP+ (QSFP28/56) INTERCONNECTS
0 rear EONs
PAGE 5
zQSFP+ (QSFP28/56) Interconnects
Part Number Detail
Cages
Base Part
Number
Ports
Cage
Applications
EMI
Suppression
Lightpipes Applied Per Port
Heat Sinks
Applied
Single
Dual
Quad
Octal
NET
PCI
SAN
2170754
1x1
Through Bezel
EMI Gasket
Yes
Yes
Yes
No
Yes
Yes
Yes
2170705
1x1
Through Bezel
EMI Springs
Yes
Yes
Yes
No
Yes
Yes
Yes
2170773
1x1
Through Bezel
EMI Springs
Yes
Yes
Yes
No
No
No
No
2170753
1x1
Through Bezel
EMI Gasket
No
No
No
No
Yes
Yes
Yes
2170752
1x1
Through Bezel
EMI Gasket
No
No
No
No
No
No
No
2170704
1x1
Through Bezel
EMI Springs
No
No
No
No
Yes
Yes
Yes
2170703
1x1
Through Bezel
EMI Springs
No
No
No
No
No
No
No
1551892
1x1
Behind Bezel
C
No
No
No
No
Yes
Yes
Yes
1551891
1x1
Behind Bezel
C
No
No
No
No
No
No
No
2170814
1x2
Through Bezel
EMI Gasket
Yes
Yes
Yes
No
Yes
Yes
Yes
2170813
1x2
Through Bezel
EMI Gasket
Yes
Yes
Yes
No
No
No
No
2170808
1x2
Through Bezel
EMI Springs
Yes
Yes
Yes
No
Yes
Yes
Yes
2170807
1x2
Through Bezel
EMI Springs
Yes
Yes
Yes
No
No
No
No
2170812
1x2
Through Bezel
EMI Gasket
No
No
No
No
Yes
Yes
Yes
2170811
1x2
Through Bezel
EMI Gasket
No
No
No
No
No
No
No
2170806
1x2
Through Bezel
EMI Springs
No
No
No
No
Yes
Yes
Yes
2170805
1x2
Through Bezel
EMI Springs
No
No
No
No
No
No
No
2227103
1x2
Behind Bezel
C
Yes
Yes
No
No
Yes
Yes
Yes
2227103
1x2
Behind Bezel
C
No
No
No
No
Yes
Yes
Yes
2227104
1x2
Behind Bezel
C
No
No
No
No
2170769
1x3
Through Bezel
EMI Gasket
Yes
Yes
Yes
No
Yes
Yes
Yes
2170740
1x3
Through Bezel
EMI Springs
Yes
Yes
Yes
No
Yes
Yes
Yes
2170739
1x3
Through Bezel
EMI Springs
Yes
Yes
Yes
No
No
No
No
2170768
1x3
Through Bezel
EMI Gasket
No
No
No
No
Yes
Yes
Yes
2170767
1x3
Through Bezel
EMI Gasket
No
No
No
No
No
No
No
2170738
1x3
Through Bezel
EMI Springs
No
No
No
No
Yes
Yes
Yes
2170737
1x3
Through Bezel
EMI Springs
No
No
No
No
No
No
No
2173239
1x3
Behind Bezel
C
No
No
No
No
Yes
Yes
Yes
2173238
1x3
Behind Bezel
C
No
No
No
No
2170793
1x4
Through Bezel
EMI Springs
No
No
No
Yes
Yes
Yes
Yes
2170785
1x4
Through Bezel
EMI Gasket
Yes
Yes
Yes
No
Yes
Yes
Yes
2170784
1x4
Through Bezel
EMI Gasket
Yes
Yes
Yes
No
No
No
No
2170747
1x4
Through Bezel
EMI Springs
Yes
Yes
Yes
No
Yes
Yes
Yes
Part Number 1551920-2: zQSFP+ Surface Mount
Connector for use with all 1xN cages
DATA AND DEVICES /// zQSFP+ (QSFP28/56) INTERCONNECTS
Open Top
Open Top
Notes:
C = Customer Applied Gasket
1xN cages: require a SMT connector to complete the assembly
2xN cages: connectors and cages come as one integrated assembly
All cages use EMI Plug 1888810-2
PAGE 6
zQSFP+ (QSFP28/56) Interconnects
Cages (con’t)
Enhanced
Base Part
Number
Ports
Cage
Applications
EMI
Suppression
Lightpipes Applied Per Port
Heat Sinks
Applied
Single
Dual
Quad
Octal
NET
PCI
SAN
Yes
2170783
1x4
Through Bezel
EMI Gasket
No
No
No
No
Yes
Yes
2170782
1x4
Through Bezel
EMI Gasket
No
No
No
No
No
No
No
2170745
1x4
Through Bezel
EMI Springs
No
No
No
No
Yes
Yes
Yes
2170744
1x4
Through Bezel
EMI Springs
No
No
No
No
No
No
No
2227249
1x4
Behind Bezel
C
No
No
No
No
Yes
Yes
Yes
2227250
1x4
Behind Bezel
C
No
No
No
No
2315050
1x2
Behind Bezel
EMI Springs
No
No
Yes
No
Open Top
2170790
1x4
Through Bezel
EMI Springs
No
No
Yes
No
2299940
2x1
Through Bezel
EMI Springs
Yes
Yes
No
No
Custom Height
2321666
2x1
Through Bezel
EMI Springs
Yes
Yes
No
No
Single Piece Press Fit
2299870
2x2
Through Bezel
EMI Springs
Yes
Yes
No
No
Custom Height
No
No
No
Custom Height
2321630
2x2
Through Bezel
EMI Springs
Yes
Yes
No
No
Single Piece Press Fit
2299924
2x3
Through Bezel
EMI Springs
Yes
Yes
No
No
Custom Height
2227670
2x2
Belly-to-Belly
EMI Springs
No
No
No
No
No
No
No
2300281
1x2
Belly-to-Belly
EMI Springs
No
No
No
No
No
No
No
2314790
2x1
Belly-to-Belly
EMI Springs
Yes
Yes
Yes
No
No
No
No
2308171
2x2
Belly-to-Belly
EMI Springs
Yes
Yes
Yes
No
No
No
No
2170708
1x6
Through Bezel
EMI Springs
Yes
Yes
Yes
No
Yes
Yes
Yes
2170734
1x6
Through Bezel
EMI Springs
Yes
Yes
Yes
No
No
No
No
2170707
1x6
Through Bezel
EMI Springs
No
No
No
No
Yes
Yes
Yes
2170706
1x6
Through Bezel
EMI Springs
No
No
No
No
No
No
No
2198373
2x1
Through Bezel
EMI Gasket
0/1
No
No
No
2227224
2x1
Through Bezel
EMI Gasket
0/1
No
No
No
2287054
2x1
Through Bezel
EMI Gasket
2
No
No
No
2227666
2x1
Through Bezel
EMI Springs
0/1
No
No
No
2227669
2x1
Through Bezel
EMI Springs
0/1
No
No
No
2227669
2x1
Through Bezel
EMI Springs
2
No
No
No
2170608
2x1
Through Bezel
EMI Gasket
2**
2214593
2x2
Through Bezel
EMI Gasket
0/1
No
No
No
2227225
2x2
Through Bezel
EMI Gasket
0/1
No
No
No
2287054
2x2
Through Bezel
EMI Gasket
2
No
No
No
2227667
2x2
Through Bezel
EMI Springs
0/1
No
No
No
2227670
2x2
Through Bezel
EMI Springs
0/1
No
No
No
2289129
2x2
Through Bezel
EMI Springs
2
No
No
No
2214565
2x3
Through Bezel
EMI Gasket
0/1
No
No
No
2227226
2x3
Through Bezel
EMI Gasket
0/1
No
No
No
2287054
2x3
Through Bezel
EMI Gasket
2
No
No
No
2227668
2x3
Through Bezel
EMI Springs
0/1
No
No
No
2227671
2x3
Through Bezel
EMI Springs
0/1
No
No
No
2227671
2x3
Through Bezel
EMI Springs
2
No
No
No
2170610
2x3
Through Bezel
EMI Gasket
1/2**
Part Number 1551920-2: zQSFP+ Surface Mount
Connector for use with all 1xN cages
DATA AND DEVICES /// zQSFP+ (QSFP28/56) INTERCONNECTS
Notes:
Thermal Footprint
Thermal Footprint
C = Customer Applied Gasket
1xN cages: require a SMT connector to complete the assembly
2xN cages: connectors and cages come as one integrated assembly
All cages use EMI Plug 1888810-2
PAGE 7
zQSFP+ (QSFP28/56) Interconnects
Accessories
Type
Surface Mount Connector
Description
Part Number(s)
zQSFP+ SMT connector (For use with all 1xN cages)
1551920-2
1x1 Heat Sink Clip
2007304-5
1xN Heat Sink Clip
2227644-3, -4, -6
1x1 Single Lightpipe
2173481-1
1xN Single Lightpipe
2173482-1, -2, -3, -7
1x1 Heats Sink Clip
2007304-5
1xN Heat Sink Clip
2227644-3, -4, -6
1x1 Single Lightpipe
2170720-1
1x1 Dual Lightpipe
2170762-1
1x1 Quad Lightpipe
2170777-1
1xN Single Lightpipe
2170720-1
1xN Dual Lightpipe
2170761-1
1xN Quad Lightpipe
2170762-1
Behind Bezel
Through Bezel
Specifications
1xN zQSFP+
•
Cage and Connector Product Spec: 108-19428
•
SMT Connector Application Spec: 114-32022
•
Cage Assembly Applications Spec: 114-32023
2xN Stacked zQSFP+
•
Product Spec: 108-60102
•
Application Spec: 114-60015
DATA AND DEVICES /// zQSFP+ (QSFP28/56) INTERCONNECTS
PAGE 8
zQSFP+ (QSFP28/56) Interconnects
Direct Attach Copper Cable Assemblies
TE’s QSFP28 and QSFP56 passive copper cable assemblies
feature eight differential copper pairs, providing four data
transmission channels at speeds up to 28 Gbps NRZ and 56 Gbps
PAM-4, and meet 100G Ethernet, 200G Ethernet and Infiniband
Enhanced Data Rate (EDR) requirements.
Offered in a broad range of wire gages – from 30AWG through
33AWG – this 100G copper cable assembly features low insertion
loss and low cross talk. This next generation cable assembly
shares the same mating interface with QSFP+ and QSFP28 form
factors, making it backward compatible with existing QSFP ports.
QSFP28 and QSFP56 form factors can be used with current 40G
and 100G applications with substantial signal integrity margin.
Features and Benefits
•
Compatible with IEEE 802.3cd, IEEE 802.3bj, IEEE
802.3by and InfiniBand EDR
•
Optimized construction to minimize insertion loss
and cross talk
•
Customized 360° cable braid termination limits EMI
radiation
•
Compatible with all existing QSFP connectors and
cages
•
Pull-to-release slide latch design
•
30AWG through 33AWG cable
•
Straight and breakout assembly configurations
available
•
Customizable EEPROM mapping for cable signature
•
RoHS compliant
•
Contact your TE Representative for customized lengths
Part Number Detail
QSFP56 Cable Assemblies
QSFP28 Cable Assemblies
Base Part
Number
Description
2829040
InfiniBand EDR
AWG
Dash to Length
(meters)
1
33
-2
-4
-6
2323239
33
-16
-18
2323247
-2
-8
-10
-2
-2
-4
QSFP28 Straight 100G
Ethernet (NRZ)
30
-1
2821033
QSFP28 Breakout to
4x SFP28
33
-8
30
-1
33
-7
30
-1
QSFP28 Breakout to
2x QSFP28
3
30
2231368
2821309
2
Base Part
Number
2323238
2323248
2325343
DATA AND DEVICES /// zQSFP+ (QSFP28/56) INTERCONNECTS
2325344
Description
QSFP56 Straight
200G Ethernet (NRZ)
QSFP56 Breakout to
4x SFP56
QSFP56 Breakout to
2x QSFP56
AWG
Dash to Length
(meters)
0.5
1
33
-1
-2
30
-1
-2
33
-1
-2
30
-1
-2
33
-1
-2
30
-1
-2
1.5
-3
-3
-3
PAGE 9
zQSFP+ (QSFP28/56) Interconnects
Frequently Asked Questions
What data rate does zQSFP+ support?
zQSFP+ provides four data transmission channels at speeds up to 28 Gbps NRZ and 56 Gbps PAM-4 per channel.
Is TE’s footprint compatible with other suppliers?
TE’s behind bezel cages are not compatible with all sources. TE through bezel 1xN and stacked products are footprint compatible
and dual sourced with Molex, LLC. zQSFP+ connectors and cages are designed to meet SFF-8662.
Are heat sinks available?
Yes, TE offers a generous portfolio of heat sink heights and styles, as well as custom heat sinks upon request.
Is application tooling required?
Single port cage assemblies require only flat-rock tooling, while 1xN and stacked assemblies normally require specific application
tooling.
For More Information
TE Technical Support Center
USA:
1.800.522.6752
Canada:
1 .905.475.6222
Mexico:
52.0.55.1106.0800
Latin/S. America: 54.0.11.4733.2200
Germany:
49.0.6251.133.1999
UK:
44.0.800.267666
France:
33.0.1.3420.8686
Netherlands: 31.0.73.6246.999
China:
86.0.400.820.6015
te.com/products/qsfp
© 2018 TE Connectivity Ltd. family of companies. All Rights Reserved.
TE Connectivity, TE Connectivity (logo) and Every Connection Counts are trademarks.
zQSFP+ is a part of the ZXP® family of connectors and uses ZXP technology. ZXP is a trademark of Molex, LLC.
5-1773463-0 DND 05/2018
While TE has made every reasonable effort to ensure the accuracy of the information in this brochure, TE does not guarantee that it is error-free, nor does TE make any other
representation, warranty or guarantee that the information is accurate, correct, reliable or current reserves the right to make any adjustments to the information contained
herein at any time without notice. TE expressly disclaims all implied warranties regarding the information contained herein, including, but not limited to, any implied warranties
of merchantability or fitness for a particular purpose. The dimensions in this catalog are for reference purposes only and are subject to change without notice. Specifications are
subject to change without notice. Consult TE for the latest dimensions and design specifications.
DATA AND DEVICES /// zQSFP+ (QSFP28/56) INTERCONNECTS
