D-Link DEM-CB300S 10G SFP+ 3 m Direct Attach Cable
PRODUCT DESCRIPTION
D-Link DEM-CB300S 10G Passive SFP+ Twinaxial Direct Attach Cable, 3 m (DEM-CB300S) - 5 Years Local Warranty
10 Gigabit Across the Rack
The D-Link DEM-CB300S is a 3 m passive twinaxial direct attach copper (DAC) cable with an SFP+ connector on each end, carrying 10 Gbps Ethernet between two SFP+ ports. The extra length suits links between adjacent racks or between top-of-rack switches and servers lower in the cabinet.
Built to the SFP+ Standards
30 AWG twinax, 100 Ohm impedance, 23.5 mm minimum bend radius and full compliance with the SFP MSA, SFF-8431, EIA 364 and UL 94. D-Link rates it for -40 to 85 °C operation.
Need help choosing? Email sales@sourceit.com.sg with your switch model and the ports you want to connect, and we will match the right cable for you.
D-Link DEM-CB300S Datasheet — Technical Specifications
General
| Product Name | D-Link DEM-CB300S 10G Passive SFP+ Twinaxial Direct Attach Cable, 3 m |
| Part Number | DEM-CB300S |
| Series | 10G Passive SFP+ Twinaxial Direct Attach Cable Series |
| Local Warranty (Singapore) | 5 years, supplied by SourceIT with a GST invoice |
Cable & Electrical
| Data Rate | 10 Gbps |
| Connector Type | SFP+ cable assembly (SFP+ to SFP+) |
| Cable Length | 3 m |
| Cable Type | Passive twinaxial copper |
| Wire Gauge | 30 AWG |
| VMA Loss to Crosstalk Ratio (VCR) | Min. 32.5 dB |
| Minimum Cable Bend Radius | 23.5 mm (0.93 in) |
| Cable Characteristic Impedance | 100 Ohms |
| Voltage / Current | 30 V AC / 0.5 A |
| Operating Temperature | -40 to 85 °C (-40 to 185 °F) |
| Certifications | SFP MSA, SFF-8431, EIA 364, UL 94 |
Dimensions and weight are not published by D-Link for this cable.
Compatibility & Software Support
Host Switches
D-Link lists the DEM-CB300S for the DGS-1510, DGS-3420, DGS-3620, DGS-6600, DXS-1100, DXS-1210, DXS-3400 and DXS-3600 Series switches (dlink.com product page).
Software
Direct attach cables need no configuration or licence — the host switch detects the cable when it is plugged in.
Package Contents & D-Link Direct Attach Cable Ordering Information
D-Link Direct Attach Cables
| Model | Connectors | Rate | Length |
| DEM-CB100S | SFP+ to SFP+ | 10 Gbps | 1 m |
| DEM-CB300S (this listing) | SFP+ to SFP+ | 10 Gbps | 3 m |
| DEM-CB700S | SFP+ to SFP+ | 10 Gbps | 7 m |
| DEM-CB100QXS | QSFP+ to QSFP+ | 40 Gbps | 1 m |
| DEM-CB300QXS | QSFP+ to QSFP+ | 40 Gbps | 3 m |
| DEM-CB100QXS-4XS | QSFP+ to 4 x SFP+ breakout | 40 Gbps (4 x 10G) | 1 m |
| DEM-CB100Q28 | QSFP28 to QSFP28 | 100 Gbps | 1 m |
| DEM-CB100Q28-4S28 | QSFP28 to 4 x 25G SFP28 breakout | 100 Gbps (4 x 25G) | Not stated in datasheet |
| DEM-CB50CXP | CXP to CXP (stacking) | 120 Gbps (12 x 10G) | 0.5 m |
Package contents are not listed in D-Link's datasheet — ask us if you need confirmation of what is in the box.
Datasheet & Downloads
| D-Link datasheet | DEM-CB100S / DEM-CB300S Datasheet, updated April 2017 (PDF) |
| D-Link datasheet | 10G Passive SFP+ Direct Attach Cable Series Datasheet v1.00 WW, updated Jan 2013 (PDF) |
| D-Link product page | DEM-CB300S on dlink.com |
Need a PDF sent directly? Email sales@sourceit.com.sg quoting DEM-CB300S.
Frequently Asked Questions — D-Link DEM-CB300S
Which switches is it for?
D-Link lists the DGS-1510, DGS-3420, DGS-3620, DGS-6600, DXS-1100, DXS-1210, DXS-3400 and DXS-3600 Series. For other hosts, send us the model and we will check before you order.
Is it active or passive?
Passive twinaxial copper, per the D-Link datasheet.
What warranty do I get?
5 years local warranty in Singapore, supplied by SourceIT with a GST invoice.
