Page 1
10G SFP+ Module Series
Feature Highlights
  Enhanced Small Form-Pluggable ( 
form factor
  Hot pluggable  
  Support 10G Ethernet  
  Feature Digital Diagnostics Monitoring  
1
(DDM)
  RoHS Compliant  
  Compliant with MSA (Multiple Source  
Agreement)
  Compliant with IEEE802.3ae and 802.3aq  
standards 
1
DEM-431XT-DD, DEM-432XT-DD, DEM-433XT-DD, and
 DEM-435XT-DD only.
2
DEM-436XT-BXD and DEM-436XT-BXU models only.
SFP+) 
10G SFP+ Modules
D-Link’s 10G SFP+ Module series are hot-swappable SFP+ transceivers that plug into SFP+ slots on switches 
and support 10G Ethernet. The D-Link 10GBASE SFP+ Module Series transceivers offer customers a wide 
variety of 10G Ethernet connectivity options for data centers, enterprise wiring closets, and service provider 
transport applications.
Enhanced Small Form-factor Pluggable Format
The transceivers use the Enhanced Small Formfactor Pluggable format (SFP+). The SFP+ form factor 
is smaller than other form factors such as Xenpak, 
X2, and 10G XFP, ensuring lower costs, lower power 
disruption, and higher port density. They provide 
the necessary signal amplification for data to be 
transmitted to the network cable from the port, and 
vice versa, for the port to receive data from the 
network cable. 
Hot Pluggable
All D-Link transceivers are hot-pluggable. You can 
connect a transceiver while the system is powered 
Digital Diagnostics Monitoring (DDM)
Several of the 10G SFP+ Modules1 feature DDM realtime monitoring of critical parameters, including 
transmitted and received power, temperature, and 
voltage. This allows for convenient monitoring of 
the module’s fiber connection and early detection of 
problems.
Bi-directional WDM transmission
2
Bi-directional WDM transmission allows data to 
be transmitted simultaneously in both directions 
on a fiber cable. This helps you save on the cost of 
deploying extra fiber cables as well as allows for 
more flexible bandwidth allocation. 
on without causing any problems. This permits 
modules to be added or removed without interrupting 
the network.
10G Ethernet speeds
The transceivers all support 10G Ethernet, which 
results in very fast data transmissions of up to 10 
Gbit/s. This is 10 times faster than Gigabit Ethernet 
and enables the switch to handle faster and higher 
data transmissions, making it very suitable for 
business needs. 
01
Page 2
10G SFP+ Module Series
Technical Specifications
Standard
Features
Speed
Interface
Operating
Reliability
Function
Physical and 
Environment
Emission(EMI) 
and Safety 
Standard Compliance
Form Factor Type
Fibre Channel FC-PI Standard
Fiber Media Support
Distance Capacity
Hot Pluggable
MSA Compliant
RoHS Compliant
Speed
Connector
Single/Bi-Directional
Wavelength
Output Optical Power 
(TX Optical Power)
Input Optical Power 
(RX Optical Power)
Sensitivity
Cable Type
Power
Maximum Input Current
Minimum Power Budget
Maximum Power Budget
Heat Generated
MTBF (Hours)
DDM (Digital Diagnostics 
Monitoring)
Operating Temperature
Storage Temperature
Operating Humidity
Storage Humidity
Dimensions (W x D x H) 
Weight
Bail Latch Color
EMI
Safety
DEM-431XT  DEM-431XT-DD  DEM-432XT
IEEE-802.3ae
10GBASE-SR
SFP+  SFP+  SFP+
1200-Mx-SN-I  1200-Mx-SN-I  1200-SM-LL-L
Multi-Mode  Multi-Mode  Single-Mode
62.5 μm, 160 MHz-km: 26 m
62.5 μm, OM1 200 MHz-km: 33 m
50 μm, 400 MHz-km: 66 m
50 μm, OM2 500 MHz-km: 82 m
50 μm, OM3 2000 MHz-km: 300 m
ü  ü  ü
ü  ü  ü
ü  ü  ü
10 Gbps  10 Gbps  10 Gbps
Duplex LC Connector  Duplex LC Connector  Duplex LC Connector
850 nm  850 nm  1310 nm
Max.: -1 dBm
Min.: -6.5 dBm
Max.: -1 dBm
Min.: -11.1 dBm
-11.1 dBm  -11.1 dBm   -12.6 dBm
Multi-mode 50/125 um or 62.5/125 um fiber  Multi-mode 50/125 um or 62.5/125 um fiber  Single-mode 9/125 um fiber
3.3 V  3.3 V  3.3 V
3.3 V: 300 mA  3.3 V: 250 mA  3.3 V: 300 mA
4.6 dB  6.1 dB  4.1 dB
10.1 dB  10.1 dB  10.1 dB
3.6 kJ/h  2.9 kJ/h  3.6 kJ/h
3,960,000  5,948,000  4,650,000
—
0 to 70 °C  0 to 70 °C  0 to 70 °C
-40 to 85 °C  -40 to 85 °C  -40 to 85 °C
5 to 85%  0 to 85%  5 to 85%
5 to 95%  0 to 85%  5 to 95%
(0.58 x 2.22 x 0.47 inches) 
Compliant with SFF8432,14.8 x 56.5 x 11.85 mm
18 g (0.04 lbs)  22 g (0.05 lbs)  19.5 g (0.04 lbs)
Beige  Beige  Blue
CE, FCC, VCCI  CE, FCC, VCCI  CE, FCC, VCCI
UL, TUV, CDRH  CSA, TUV, CDRH  UL, TUV, CDRH
Compliant with SFF8432,14.8 x 56.5 x 11.85 mm
IEEE-802.3ae
10GBASE-SR
62.5 μm, 160 MHz-km: 26 m
62.5 μm, OM1 200 MHz-km: 33 m
50 μm, 400 MHz-km: 66 m
50 μm, OM2 500 MHz-km: 82 m
50 μm, OM3 2000 MHz-km: 300 m
Single Direction
Max.: -1 dBm
Min.: -5 dBm
Max.: 0.5 dBm
Min.: -11.1 dBm
ü
(0.58 x 2.22 x 0.47 inches) 
IEEE-802.3ae
10GBASE-LR
10 km
Max.: 0.5 dBm
Min.: -8.5 dBm
Max.: 0.5 dBm
Min.: -8.5 dBm
—
(0.58 x 2.22 x 0.47 inches) 
Compliant with SFF8432,14.8 x 56.5 x 11.85 mm
02
Page 3
10G SFP+ Module Series
Technical Specifications
Standard
Features
Speed
Interface
Operating
Reliability
Function
Physical and 
Environment
Emission 
(EMI) and 
Safety 
Standard Compliance
Form Factor Type
Fibre Channel FC-PI Standard
Fiber Media Support
Distance Capacity
Hot Pluggable
MSA Compliant
RoHS Compliant
Speed
Connector
Single/Bi-Directional
Wavelength
Output Optical Power 
(TX Optical Power)
Input Optical Power 
(RX Optical Power)
Sensitivity
Cable Type
Power
Maximum Input Current
Minimum Power Budget
Maximum Power Budget
Heat Generated
MTBF (Hours)
DDM (Digital Diagnostics 
Monitoring)
Operating Temperature
Storage Temperature
Operating Humidity
Storage Humidity
Dimensions (W x D x H)
Weight
Bail Latch Color
EMI
Safety
DEM-432XT-DD  DEM-433XT  DEM-433XT-DD
IEEE-802.3ae 
10GBASE-LR
SFP+  SFP+  SFP+
1200-SM-LL-L  N/A  N/A
Single-Mode  Single-Mode  Single-Mode
10 km  40 km  40 km
ü  ü  ü
ü  ü  ü
ü  ü  ü
10 Gbps  10 Gbps  10 Gbps
Duplex LC Connector  Duplex LC Connector  Duplex LC Connector
1310 nm  1550 nm  1550 nm
Max.: 0.5 dBm
Min.: -8.2 dBm
Max.: 0.5 dBm
Min.: -12.6 dBm
-12.6 dBm  -14.1 dBm   -14.1 dBm
Single-mode 9/125 um fiber  Single-mode 9/125 um fiber  Single-mode 9/125 um fiber
3.3 V  3.3 V  3.3 V
3.3 V: 285 mA  3.3 V: 500 mA  3.3 V: 400 mA
4.4 dB  11.1 dB  9.4 dB
17.6 dB  17.1 dB  18.1 dB
3.3858 kJ/h  5.94 kJ/h  4.752 kJ/h
3,390,000  1,580,000  2,520,000
ü
-5 to 70 °C  0 to 70 °C  0 to 70 °C
-40 to 85 °C  -40 to 85 °C  -40 to 85 °C
0 to 85%  5 to 85%  0 to 85%
0 to 85%  5 to 95%  0 to 85%
14.8 x 56.5 x 11.85 mm 
(0.58 x 2.22 x 0.47 inches) 
Compliant
 with SFF8432
0.05 lbs
22 g (
CE, FCC, VCCI  CE, FCC, VCCI  CE, FCC, VCCI
UL, TUV, CDRH  CSA, TUV, CDRH  UL, TUV, CDRH
)  20 g (0.04 lbs)  22 g (
Blue  Red  Red
IEEE-802.3ae 
10GBASE-ER
Single Direction
Max.: 3 dBm
Min.: -3 dBm
Max.: -1 dBm
Min.: -14.1 dBm
—
14.8 x 56.5 x 11.85 mm 
(0.58 x 2.22 x 0.47 inches) 
Compliant
 with SFF8432
IEEE-802.3ae 
10GBASE-ER
Max.: 4 dBm
Min.: -4.7 dBm
Max.: -1 dBm
Min.: -14.1 dBm
ü
14.8 x 56.5 x 11.85 mm 
(0.58 x 2.22 x 0.47 inches) 
Compliant
 with SFF8432
0.05 lbs
)
03
Page 4
10G SFP+ Module Series
Technical Specifications
Standard
Features
Speed
Interface
Operating
Reliability
Function
Physical and 
Environment
Emission(EMI) 
and Safety 
Standard Compliance
Form Factor Type
Fibre Channel FC-PI Standard
Fiber Media Support
Distance Capacity
Hot Pluggable
MSA Compliant
RoHS Compliant
Speed
Connector
Single/Bi-Directional
Wavelength
Output Optical Power 
(TX Optical Power)
Input Optical Power 
(RX Optical Power)
Sensitivity
Cable Type
Power
Maximum Input Current
Minimum Power Budget
Maximum Power Budget
Heat Generated
MTBF (Hours)
DDM (Digital Diagnostics 
Monitoring)
Operating Temperature
Storage Temperature
Operating Humidity
Storage Humidity
Dimensions (W x D x H) 
Weight
Bail Latch Color
EMI
Safety
DEM-434XT  DEM-435XT  DEM-435XT-DD
IEEE-802.3ae 
10GBASE-ZR
SFP+  SFP+  SFP+
1200-SM-LL-L 10G Fiber Channel  N/A  N/A
Single-Mode  Multi-Mode  Multi-Mode
80 km
IEEE-802.3ae 
IEEE-802.3aq 
10GBASE-LRM
62.5 um, 160MHz-km: 220 m
62.5 um, OM1, 200MHz-km: 220 m
50 um, 400MHz-km: 100 m
50 um, OM2, 500MHz-km: 220 m
50 um, OM3, 2000MHz-km: 220 m
ü  ü  ü
ü  ü  ü
ü  ü  ü
10 Gbps  10 Gbps  10 Gbps
Duplex LC Connector  Duplex LC Connector  Duplex LC Connector
Single Direction
1550 nm  1310 nm  1310 nm
Max.: 4 dBm
Min.: 0 dBm
Max.: -7 dBm
Min.: -24 dBm
-24 dBm  -6.5 dBm   -6.5 dBm
Single-mode 9/125 um fiber  Multi-mode 50/125 um or 62.5/125 um fiber  Multi-mode 50/125 um or 62.5/125 um fiber
3.3 V  3.3 V  3.3 V
450 mA  3.3 V: 300 mA  3.3 V: 300 mA
24 dB  2 dB  2 dB
28 dB  7 dB  8 dB
5.35 kJ/h  3.6 kJ/h  3.564 kJ/h
1,584,786  3,590,000  4,140,000
—  —
0 to 70 °C  0 to 70 °C  -5 to 70 °C
-40 to 85 °C  -40 to 85 °C  -40 to 85 °C
5 to 85%  5 to 85%  0 to 85%
5 to 85%  5 to 95%  0 to 85%
14.3 x 56.5 x 11.85 mm 
(0.58 x 2.22 x 0.47 inches) 
 with SFF8432
Compliant
20 g (
CE, FCC, VCCI  CE, FCC, VCCI  CE, FCC, VCCI
)  18.5 g (
0.04 lbs
White  Brown  Brown
UL, TUV  UL, TUV, CDR  CSA, TUV, CDRH
Max.: 0.5 dBm
Min.: -8.5 dBm
Max.: 0.5 dBm
Min.: -6.5 dBm
14.8 x 56.5 x 11.85 mm 
(0.58 x 2.22 x 0.47 inches) 
Compliant
 with SFF8432
)
0.04 lbs
IEEE-802.3ae 
IEEE-802.3aq 
10GBASE-LRM
62.5 um, 160MHz-km: 220 m
62.5 um, OM1, 200MHz-km: 220 m
50 um, 400MHz-km: 100 m
50 um, OM2, 500MHz-km: 220 m
50 um, OM3, 2000MHz-km: 220 m
Max.: 1.5 dBm
Min.: -4.5 dBm
Max.: 1.5 dBm
Min.: -6.5 dBm
ü
14.8 x 56.5 x 11.85 mm 
(0.58 x 2.22 x 0.47 inches) 
Compliant
22 g (0.05 lbs)
 with SFF8432
04
Page 5
10G SFP+ Module Series
Technical Specifications
Standard
Features
Speed
Interface
Operating
Reliability
Function
Physical and 
Environment
Emission (EMI) 
and Safety 
Standard Compliance
Form Factor Type
Fibre Channel FC-PI Standard
Fiber Media Support
Distance Capacity
Hot Pluggable
MSA Compliant
RoHS Compliant
Speed
Connector
Single/Bi-Directional
Wavelength
Output Optical Power 
(TX Optical Power)
Input Optical Power 
(RX Optical Power)
Sensitivity
Cable Type
Power
Maximum Input Current
Minimum Power Budget
Maximum Power Budget
Heat Generated
MTBF (Hours)
DDM (Digital Diagnostics Monitoring)
Operating Temperature
Storage Temperature
Operating Humidity
Storage Humidity
Dimension (W x D x H)
Weight
Bail Latch Color
EMI
Safety
DEM-436XT-BXD  DEM-436XT-BXU
IEEE-802.3ae, 10GBASE-LR  IEEE-802.3ae, 10GBASE-LR
SFP+  SFP+
N/A  N/A
Multi-Mode  Single-Mode
20 km  20 km
ü  ü
ü  ü
ü  ü
10 Gbps  10 Gbps
Simplex LC Connector  Simplex LC Connector
WDM Bi-directional  WDM Bi-directional
TX: 1330 nm, RX: 1270 nm  TX: 1270 nm, RX: 1330 nm
Max.: 0.5 dBm
Min.: -5.2 dBm
Max.: 0.5 dBm
Min.: -12.5 dBm
-12.5 dBm   -12.5 dBm
Single-mode 9/125 um fiber  Single-mode 9/125 um fiber
3.3 V  3.3 V
3.3 V: 300 mA  3.3 V: 300 mA
7.3 dB  7.3 dB
13 dB  13 dB
3.6 kJ/h  3.6 kJ/h
1,920,000  1,920,000
—  —
-40 to 85 °C  -40 to 85 °C
-40 to 85 °C  -40 to 85 °C
5 to 85%  5 to 85%
5 to 95%  5 to 95%
(0.58 x 2.22 x 0.47 inches) 
Compliant
 with SFF8432, 14.8 x 56.5 x 11.85 m
(0.05 lbs)
22 g 
Blue  Blue
CE, FCC, VCCI  CE, FCC, VCCI
UL, TUV, CDRH  UL, TUV, CDRH
Compliant 
Max.: 0.5 dBm
Min.: -5.2 dBm
Max.: 0.5 dBm
Min.: -12.5 dBm
(0.58 x 2.22 x 0.47 inches) 
with SFF8432, 14.8 x 56.5 x 11.85 mm
22 g 
(0.05 lbs)
No. 289 Xinhu 3rd Road, Neihu, Taipei 114, Taiwan
D-Link is a registered trademark of D-Link Corporation and its overseas subsidiaries.
Specifications are subject to change without notice.
All other trademarks belong to their respective owners.
©2012 D-Link Corporation. All rights reserved.
D-Link Corporation
Release 01 (February 2012)
05
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