10Gtek
10Gtek SFP+ DAC Twinax Cable (0.5-Meter)
Bottom line: The 10Gtek SFP+ DAC Twinax Cable: Passive 10GBase-CU link needs no separate SFP+ transceivers or fiber; main trade-off: 0.5 m includes both connectors, so it only reaches devices next to each other.
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Pros & Cons
Pros
- ✓ Passive 10GBase-CU link needs no separate SFP+ transceivers or fiber
- ✓ Listed compatible with Cisco SFP-H10GB-CU0.5M, UniFi UC-DAC-SFP+, TP-Link
- ✓ EEPROM over I2C lets host ports identify the cable
- ✓ Every cable gets TDR and VNA signal integrity testing
- ✓ 0.5 m length keeps adjacent-device rack runs free of slack
Cons
- ✗ 0.5 m includes both connectors, so it only reaches devices next to each other
- ✗ Passive copper DAC is meant for short in-rack runs, not long distances
- ✗ Rated for 10G SFP+ only, not a 25G SFP28 or 40G QSFP+ link
- ✗ Vendor-locked switches may still reject third-party coded cables
Manufacturer description
The 10Gtek SFP+ DAC Twinax Cable is a 0.5-meter passive direct attach copper link for 10GBase-CU connections between SFP+ ports. If you are wiring a switch to a server, NAS or firewall in the same rack, this 10G SFP+ to SFP+ cable does the job without transceivers or fiber patching. The cable uses 2-pair differential twinax with an EEPROM read over I2C, so the host port can identify the module. 10Gtek lists it as compatible with Cisco SFP-H10GB-CU0.5M, Ubiquiti UniFi UC-DAC-SFP+, TP-Link TL-SM5220-0.5M, Fortinet and other SFP+ gear. That makes it a good fit for homelab racks and small-office…
SpecPicks Verdict
SpecPicks scored 10Gtek SFP+ DAC Twinax Cable using a rating × review-volume × price-fit model applied to published specs and reviews across the networking category. 10Gtek's networking lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for networking of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
How long is the 10Gtek 0.5m SFP+ DAC cable, and does that include the connectors?
It is 0.5 meters total, and 10Gtek notes that this length includes both SFP+ connectors. Plan for devices mounted next to each other, such as a switch and the server directly below it.
Will this DAC cable work with my Ubiquiti UniFi or Cisco switch?
10Gtek lists it as compatible with Cisco SFP-H10GB-CU0.5M, Ubiquiti UniFi UC-DAC-SFP+, TP-Link TL-SM5220-0.5M and Fortinet equipment. Some switches enforce vendor coding, so check your model's third-party optics policy before you buy.
Is this an active or passive SFP+ cable?
It is passive. It uses 2-pair differential twinax copper with an EEPROM read over I2C for identification, and it has no active signal-conditioning electronics.
What speed does this SFP+ to SFP+ cable support?
It is a 10GBase-CU cable built for 10G SFP+ ports. For 25G SFP28 or 40G QSFP+ ports, choose a DAC rated for that standard.
How is the signal quality of each cable verified?
10Gtek says each DAC cable goes through TDR and VNA measurement to confirm it passes signal integrity testing. The cables are built on an automated line with laser cutting, automatic soldering and UV curing. Check the product listing for current warranty terms.
Key Features
- 10GBase-CU, 0.5 Meter (Note that this length includes two connectors.)
- 2-pair differential twinax cable, Passive, EEPROM I2C
- Compatible with Cisco SFP-H10GB-CU0.5M, Ubiquiti, Fortinet and more
- 10Gtek's automatic assembly line, assures the consistency of manufacture under the process of laser cutting, aluminum shielding stripping, isolator stripping, automatic reshaping, automatic soldering and ultraviolet ray curing. Each DAC cables take the TDR & VNA measurement, guaranteeing passing the signal integrity test.
Full Specifications
| Brand | 10Gtek |
|---|---|
| Color | x1 |
| Gauge | 30 |
| Model | CAB-10GSFP-P50CM-30(Cisco-1pc) |
| Weight | 10g |
| Frequency | 10 GHz |
| Cable Type | PVC Copper Cable |
| Item Shape | Round |
| Model Name | 10Gtek SFP+ DAC Twinax Cable |
| Unit Count | 1 Count |
| Item Length | 0.5 meters |
| Part Number | CAB-10GSFP-P50CM-30(Cisco-1pc) |
| Connector Type | Sfp+ |
| Number of Pins | 48 |
| Outer Material | Copper with shielding |
| Number of Items | 1 |
| Special Feature | Ultra-low Power Consumption, Ultra-low Latency, High Cost-effectiveness. |
| Connector Gender | Male-to-Male |
| Specification Met | Sfp+ Msa |
| Compatible Devices | Cisco SFP-H10GB-CU0.5M, Ubiquiti UniFi UC-DAC-SFP+, Meraki, Fortinet, D-Link. |
| Full listing title | 10Gtek SFP+ DAC Twinax Cable, 10G SFP+ to SFP+ Direct Attach Copper Patch Passive Cable for Cisco SFP-H10GB-CU0.5M, Ubiquiti UniFi UC-DAC-SFP+, TP-Link TL-SM5220-0.5M, Fortinet and More, 0.5-Meter |
Ready to buy?
10Gtek SFP+ DAC Twinax Cable, 10G SFP+ to SFP+ Direct Attach Copper Patch Passive Cable for Cisco SFP-H10GB-CU0.5M, Ubiquiti UniFi UC-DAC-SFP+, TP-Link TL-SM5220-0.5M, Fortinet and More, 0.5-Meter is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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