SKU: 48994180292

Samlex 300W Pure Sine Wave Inverter - 12V [PST-300-12]

Sale price$121.32 Regular price$134.80
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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

Samlex 300W Pure Sine Wave Inverter - 12V [PST-300-12]300W Pure Sine Wave Inverter 12V PST Series (120 VAC) This high efficiency DC AC inverter converts 12 Volts DC to 300 Watts of pure sine wave AC power at 120 Volts, 60 Hz. The unit comes with detachable cable with 12V plug adaptor and cable with battery clamps. Features include overload protection, low battery alarm shut down, low idle power draw of less than 0. 5 Amps. AC power is available from a NEMA 20R GFCI duplex outlet on the front panel.

300W Pure Sine Wave Inverter - 12V

PST Series (120 VAC)

This high efficiency DC-AC inverter converts 12 Volts DC to 300 Watts of pure sine-wave AC power at 120 Volts, 60 Hz. The unit comes with detachable cable with 12V plug adaptor and cable with battery clamps. Features include overload protection, low battery alarm / shut down, low idle power draw of less than 0.5 Amps. AC power is available from a NEMA-20R GFCI duplex outlet on the front panel. Safety certified to UL standards.

Features:

  • High efficiency
  • Temperature controlled cooling fan – reduces energy consumption
  • Low interference Wide operating DC input range: 10.5 - 16.5 VDC
  • LED indicators for power and protections
  • Low idle power draw
  • Dual GFCI protected AC outlets
  • Commercial grade design suitable for heavy duty loads, long periods of continuous operation & for emergency back up
  • UPC – Universal Protection Circuit: low voltage, over voltage, over temperature, over load and short circuit
  • Detachable cable with 12V plug adapter
  • Detachable cable with battery clamps
  • Safety certified to UL standards, FCC compliant

Specifications:

  • Input: 12 VDC
  • Output: 120 VAC
  • Watts: 300
  • Surge: 500 Watts
  • Outlets: 2
  • Weight: 3.46 (lbs)
  • Weight: 1.57 (kg)
  • Dimensions: 6.1 x 9.69 x 2.58 (in)
  • Dimensions: 155 x 246 x 65.5 (mm)
  • Safety: ETL to UL Standard
  • Warranty: 2 Year Limited

Applications:

  • Service vehicles
  • Mobile Offices
  • Boats
  • Recreation Vehicles, Camping
  • Telecommunication
  • Field work / Construction sites
  • Solar power systems
  • Emergency backup power
  • Home electronics: TV, VCR, video games
  • Computers, printers

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Specifications:

  • Inverter Cont. Output Wattage: 300w
  • Outlet Qty: 2 Duplex GFCI
  • Inverter Input Voltage: 12v
  • Waveform: Pure Sine Wave
  • Box Dimensions: 4"H x 8"W x 12"L WT: 4.9 lbs
  • UPC: 622988072130

Owner's Manual (pdf)
Brochure (pdf)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 48994180292

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4.1 ★★★★★
Based on 7 reviews
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Product Reviews
D
Verified Purchase
David Row
Draper, US
★★★★★ 5
Do you need a powered hub instead?
NOT powered. My bad, I didn't look closely enough. I need a powered hub.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 7, 2026
A
Verified Purchase
AMAZON CUSTOMER
Belleville, US
★★★★★ 5
plug and play ...fast ...hi performance... same as higher price
plug and play ...fast ...hi performance... same as higher price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
H
Verified Purchase
H. T.
Lowell, US
★★★★★ 5
premium feel in the hand.
Can't really say whether it's that good or not elecronics wise since I didn't test it but it works like it's supposed to. Meanwhile, the housing oh man. It's premium. It feels like hard aluminum or something, very nice. Edges are rounded too with just the right sharpness like a macbook. Others would've been plastic. This is really nice for the price and if the specs really are 10Gbps, that's really good because most in this price range is 5Gbps.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 2, 2026
A
Verified Purchase
Amazon Customer
Cuba, US
★★★★★ 1
Failed to support desktop PCs with USB 3.2 Gen 2 ports
Does not work with my HP mini PC with USB 3.2 gen 2 ports - when connecting USB portable SSDs to the hub. You won't believe it, but many USB 3.2 Gen 2 hubs only support laptops not desktop PCs (except hubs that have dedicated power supply for higher power USB devices e.g. SSD/HDDs) when connecting USB portable SSDs to the hub. We need a major fix from many of the USB hub vendors so these products can work with desktop PCs that have USB 3.2 Gen 2 ports. Workaround: Just directly connect the USB portable SSD to the PC instead. If you need more USB ports, pick up a good old USB 3.0 hub. They're working correctly with portable USB SSDs when working with desktop PCs. (You'd need a powered USB hub if you're connecting 2 or more portable SSDs - do your own calculation: 5V - 1A per SSD/HDD).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 2, 2025
E
Verified Purchase
eg 123
Phoenix, US
★★★★★ 5
Perfect for ROG Ally X
Want to hook up a keyboard, mouse, headset, AND external display to a ROG Ally X? This will do it and it only takes up one (USB4) port on the Ally X. Oh, and it will also provide enough power to charge the Ally and still have juice for all the other ports. Update: I’ve now tried a few USB4 hubs because I also want Ethernet which this doesn’t have. Unfortunately I’ve discovered that most of them seem to overheat after awhile and I loose connectivity on some of the ports (for whatever reason it’s always the type A ports on the hubs that fail). After letting them cool down, the other USB hubs work again, but it’s still frustrating. This StarTech hub is the only one that works for hours. It’s a little bulkier than other hubs I’ve tried, but that’s probably because it needs to be that way for proper heat dissipation?? Anyway, I wish it had a few more ports (including Ethernet), but for reliability this thing is the best I’ve found.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 31, 2024

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