Skip to content
47

resmed airsense 11 dc adapter

Skip it

A concentrated shelf (top 5 take 74% of clicks) — this niche doesn't clear our bar today.

Market size 33Growth 35Conversion 95Competition 21Returns 41Price range 77Avg price 95Brand share 43Review moat 86Quality gap 23

Conversion

Great12.0%

search→purchase rate — share of searches ending in a sale

Avg price

Incredible$25.53

avg listing price — sweet spot $15–$100

Review moat

Great281.21

avg incumbent reviews — the moat a new listing must climb

Price range

Great$10.13–$31.99

cheapest to priciest tracked listing — scored on the share inside $15–$100

Brand share

Okay79%

top-5 brand share — brands hold most of the demand

Returns

Okay3.7%

return rate — above 5% kills the launch gate

Growth

Okay+8.3%

90-day search growth — must beat 0% to launch

Market size

Okay$158K

$158K/yr · 52K searches

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Competition

Bad74%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, resmed airsense 11 dc adapter is a $158K/yr Amazon United States market (52K searches/yr). The top 5 brands hold 79% of demand. Demand peaks in Jul. Verdict: Skip it — 47/100.

Data updated Jul 12, 2026 · scored weekly · How we score niches

resmed airsense 11 dc adapter market data

Units sold / yr
6K–8K
avg 250–500/product
Revenue / yr
$153K–$204K
units × avg price
Conversion rate
12.0%
Avg BSR
#686
Page quality
0%
Prime
100%
Sponsored
93%
Out of stock
0.0%
Avg brand age
35 months
Avg seller age
143 days

Competition & brand share

The top 5 products capture 74% of clicks — a locked-up shelf that new listings rarely crack.

Brands

12 flat

Sellers

13

Top-5 brand share

79%

Top 20: 100%

Top-5 click share

74%

Top 20: 100%

Open market

17%

  • FLGAN31%
  • HKY21%
  • NENASEW13%
  • Arkare7%
  • LIFKAHY7%
  • vhbw4%
  • Open — no brand owns it (6 brands, 17%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +8.3% search growth over the last 90 days.
1K750Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jul · busiest ÷ quietest = 1.5×

Top resmed airsense 11 dc adapter search terms

  • resmed airsense 11 power cord14K/yr
  • resmed power cord12K/yr
  • resmed airsense 11 power supply6K/yr
  • airsense 11 power cord8K/yr
  • resmed cpap power cord5K/yr
  • resmed 11 power cord4K/yr
  • airsense 11 power supply3K/yr
All search terms

Top resmed airsense 11 dc adapter products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%$16K20%$32K30%$47K40%$63K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 14 tracked products in this niche — three views at once, no toggling.

What buyers say about resmed airsense 11 dc adapter

What buyers praise and complain about, mined from review topics.

What buyers love

Size-Overall16%

“Plug fits securely”

Value For Money16%

“Fair price”

Advertised Vs Actual Product16%

“As advertised”

Compatibility-Overall12%

“no compatibility issues”

Quality-Overall9%

“Good Quality”

Portability6%

“Also put it in my travel bag so I wouldn't accidentally forget to pack it when I traveled”

Durability5%

“fairly durable”

Charging4%

“Reliable Charger”

Efficiency3%

“Works perfectly”

Ease Of Use2%

“It was easy to use”

What buyers complain about

Noise Level13%

“except thatit has a buzz/hum”

Durability11%

“understand that long-term durability is harder to predict than with an OEM replacement”

Size-Overall10%

“Wrong size”

Quality-Overall8%

“Cheap”

Value For Money6%

“There is a lot of competition at this PSU's price point”

Functionality-Overall5%

“that should have worked did not”

Heating4%

“the power box gets extremely hot”

Length4%

“The power cord itself is about 1ft shorter than the original”

Advertised Vs Actual Product3%

“Power Cord Not as Shown”

Thickness3%

“Cord very thin”

Top return reasons

Compatibility-Overall33%
Functionality-Overall14%
Size-Overall13%
Defective Material/Parts8%
Connectivity-Overall6%
Charging6%
Advertised Vs Actual Product4%
Value For Money4%
Noise Level3%
Socket/Port/Plug3%

Common questions

Is resmed airsense 11 dc adapter profitable to sell on Amazon United States?
The niche generates $158K/yr across 14 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is +8.3%. Flapen's verdict: Skip it (47/100).
How competitive is the resmed airsense 11 dc adapter niche?
12 brands and 13 sellers compete. The top 5 products take 74% of clicks and top 5 brands hold 79% of demand.
What do buyers complain about in resmed airsense 11 dc adapter?
Top complaints mined from reviews: Noise Level, Durability, Size-Overall. The return rate is 3.7%.
When does demand for resmed airsense 11 dc adapter peak?
Demand peaks in Jul; the busiest month runs 1.5× the quietest.
What does it cost to enter the resmed airsense 11 dc adapter niche?
Listings span $10.13–$31.99; the average listing price is $25.53 (sweet spot $15–$100). The average incumbent carries 281 reviews — the moat a new listing must climb.