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2ft SMA Cable 2PCS, SMA Extension Cable with SMA Male to SMA Female Connector 50 Ohm KMR240 Low Loss SMA Coax Coaxial Cable
GEMEK

GEMEK 2ft SMA Cable 2PCS

Bottom line: The GEMEK 2ft SMA Cable 2PCS: Gold-plated all-copper SMA male-to-female ends resist corrosion; main trade-off: SMA only, not RP-SMA, so many consumer routers need an adapter.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ Gold-plated all-copper SMA male-to-female ends resist corrosion
  • ✓ Double-shielded S-LMR240 coax (0.240 in) cuts loss on long runs
  • ✓ True 50 ohm impedance matches radios, SDRs and WiFi boosters
  • ✓ Rated -40C to +85C, so outdoor and attic runs are fine

Cons

  • ✗ SMA only, not RP-SMA, so many consumer routers need an adapter
  • ✗ 2 ft (62 cm) is short if the antenna sits across a room
  • ✗ LMR240-size jacket is stiffer than thin RG174 patch leads
  • ✗ Listing states no warranty terms, so check with GEMEK before buying

Manufacturer description

GEMEK Double shielded coaxial extension cable made of low loss S-LMR240 sized pure copper coax cable.Specifications:- Connector 1: SMA Male plug 50 ohm- Connector 2: SMA Female plug 50 ohm- Length: 2 feet(62cm)- Impedance: 50 Ohm- Coax: Double shielded Low-loss S-LMR240 size (0.240 inch diameter)- Operating temperature : -40°C ~ +85°C.- Minimum coiling diameter is only 1.5 inches.- 90 degree bends in one inch or less without loss.S-LMR-240：S-MR-240 is an excellent cable for runs up to 25-30 feet in WiFi and Cellular use, and provides superior performance for HF/VHF/UHF installation up to 150…

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SpecPicks Verdict

SpecPicks scored GEMEK 2ft SMA Cable 2PCS using a rating × review-volume × price-fit model applied to published specs and reviews across the cables & connectors category. GEMEK's cables & connectors 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 cables & connectors 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.

Key Features

  • ✔Connector: All-copper SMA Male to SMA Female adapter (Note: Not RP-SMA Cable, Not F Male Cable).
  • ✔Connect from SMA Equipment to SMA Female Antennas, receivers, meters, radio transmitters and WiFi Signal Booster Repeater.
  • ✔2 feet(62cm) Low-Loss S-LMR240 Size Coax, Impedance: 50 ohm. S-LMR240 offers a significantly larger center conductor and supports better signal retention for longer cable runs and higher frequency use.
  • ✔Double Shielded Coax extension cable assemblies are constructed with top quality extremely low-loss S-KMR240 cable and gold plated connectors. High frequency low loss and low impedance, heat Shrink on Both Ends.
  • ✔Compatible with all SMA-based equipment including modems and routers & WiFi Signal Booster Repeater from Cisco, Digi, Cradlepoint, Proxicast, Pepwave, Sierra Wireless, Sixnet/Red Lion and many others.

Full Specifications

BrandGEMEK
ColorBlack
Model2ft SMA Male to SMA Female Cable
Cable TypeCoaxial
Item ShapeRound
Model Name2ft SMA Male to SMA Female Cable
Unit Count2 Count
Item Length2 feet
Part Number2ft SMA Male to SMA Female Cable
ConnectivityWireless, WiFi
✔ConnectorAll-copper SMA Male to SMA Female adapter (Note: Not RP-SMA Cable, Not F Male Cable).
Connector TypeSma Male to Sma Female
Number of Pins2
Connection TypeWireless
Number of Items1
Special FeatureLow Loss Cable
Connector GenderMale-to-Female
Compatible DevicesRF
Included Components2ft SMA Male to SMA Female Cable
Indoor Outdoor UsageIndoor, Outdoor
Full listing title2ft SMA Cable 2PCS, SMA Extension Cable with SMA Male to SMA Female Connector 50 Ohm KMR240 Low Loss SMA Coax Coaxial Cable

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2ft SMA Cable 2PCS, SMA Extension Cable with SMA Male to SMA Female Connector 50 Ohm KMR240 Low Loss SMA Coax Coaxial Cable 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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2ft SMA Cable 2PCS, SMA Extension Cable with SMA Male to SMA Female Connector 50 Ohm KMR240 Low Loss SMA Coax Coaxial Cable
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