Extension Block
MaybeAn estimated 1.4% of orders come back. But the products selling today already average 4.7★, so Extension Block is a Maybe.
- Flapen Score
- 55 / 100Top 9% of 8,347 Electronics niches · +12 vs the category median of 4355
- Market size
- $139K/yr90K searches / yr
- 90-day growth
- -0.1%search demand this quarter
- Competition
- 33%top-5 click share · 27 brands · 81 sellers
Flapen Score
Extension Block against its category
The dotted line is the Electronics average. Past it, Extension Block is stronger. Inside it, weaker.
Market
The Extension Block market on Amazon at a glance
Shoppers on Amazon United States searched for Extension Block 90K times last year and spent an estimated $139K. The top 5 brands take 62% of clicks. Demand peaks in Jan. Flapen scores it 55 out of 100, a Maybe.
01 · Demand
An estimated 8.9% of those searches ended in a purchase.
Shoppers searched for this 90K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 8.9% of those searches ended in a purchase. Searches in the last 90 days moved -0.1% against the 90 days before. Searches, conversion and average price together put the market at an estimated $139K a year.
- Searches, last 12 months
- 90K
- Growth, 90 days vs prior 90
- -0.1%
- Conversion, latest week
- 8.9%
- Market size, estimated
- $139Ka year
- Peak month
- January1.9× the quietest month
- Top search term
- white surge protector power strip26K searches a year
02 · Price
A sale here is worth $17.28.
Listings sell for $17.28 on average, from $9.27 to $37.90. Amazon reports units sold in ranges. This niche sold 8K to 10K a year. The average listing sells 100 to 250 of them. At $17.28 that is $2K to $4K a year per listing.
- Average price
- $17.28inside the $15 to $100 sweet spot
- Price range
- $9.27–$37.90
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 8K–10K
- Units per listing a year
- 100–250
- Revenue per listing a year
- $2K–$4K
- Returns
- 1.4%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
75% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #92 within Accessories & Supplies. It carries 14,602 reviews at 4.73 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 75%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #92in Accessories & Supplies
- Average rating
- 4.73 starsAmazon United States average 4.42 stars
- Average reviews
- 14,602per listing
- Listings tracked
- 52
04 · Newcomers
1 of last year's 1 launches cleared the first-year sales bar.
1 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 46 months on average, so the names here are settling in.
- Launched, last 12 months
- 1
- Successful launches
- 1Amazon's first-year sales bar
- Average brand age
- 46 months
Products
Top Extension Block products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 17, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Flat Plug Power Strip Ultra Thin Flat Extension Cord - Addtam 12 Outlet 3 Sides Multiple Outlets 5Ft 1050J Surge Protector Wall Mount Desk Charging Station for Home Office Dorm Room Essentials
- Price
- $10.19
- Rating
- 4.8/5
- Reviews
- 4,221
- Age
- 3y ago

6 Ft Surge Protector Power Strip - 8 Widely Outlets with 4 USB Ports 3 Side Outlet Extender with 6 Feet Extension Cord Flat Plug Wall Mount Desk USB Charging Station ETL White
- Price
- $9.41
- Rating
- 4.6/5
- Reviews
- 51,188
- Age
- 4y ago

Anker Power Strip with 2100J Surge Protector Outlet Extender 5ft Extension Cord with Multiple Outlets 12 AC 2 USB A 1 USB C Port for 20W Home Office Dorm Room Essentials TUV Listed
- Price
- $27.05
- Rating
- 4.8/5
- Reviews
- 19,415
- Age
- 4y ago

Anker Power Strip with 300J Surge Protector Flat Plug Extension Cord with Multiple Outlets 6 AC 2 USB A & 2 USB C Ports for 20W 5ft Outlet Extender Dorm Room Essentials Home Office
- Price
- $23.08
- Rating
- 4.7/5
- Reviews
- 4,532
- Age
- 2y ago

Amazon Basics Rectangle 6-Outlet Surge Protector Power Strip with Circuit Breaker 600 Joule 2ft Cord White 2-Pack
- Price
- $11.29
- Rating
- 4.7/5
- Reviews
- 44,273
- Age
- 1y ago
Trending
estimated 90-day click momentum
GE Surge Protector Power Strip 6 Ft Extension Cord 6 Outlet Extender 800 Joules Flat Plug Twist-to-Close Safety Covers ETL Listed White 67051
- Price
- $13.48
- Rating
- 4.8/5
- Reviews
- 58,457
- Age
- 4y ago

10Ft Extension Cord with Multiple Outlets SUPERDANNY Flat Plug Surge Protector Power Strip 10 Ft Long Cord 6 Outlets & 3 USB Ports Charging Station for Home Office College Dorm Room Essentials
- Price
- $12.65
- Rating
- 4.7/5
- Reviews
- 8,298
- Age
- 9mo ago

TROND Surge Protector Power Strip with 360 Rotating Flat Plug 5 Widely Spaced Outlets with 2 USB C and 2 USB A 1440J Surge Protector Wall Mountable Extension Cord 6ft for Home Office Dorm White
- Price
- $21.40
- Rating
- 4.7/5
- Reviews
- 2,086
- Age
- 1y ago

Amazon Basics Power Strip Surge Protector with 6 Outlets 2 USB Ports 1000 Joule Protection 6-Foot Extension Cord White
- Price
- $11.15
- Rating
- 4.8/5
- Reviews
- 12,804
- Age
- 6y ago

Amazon Basics 12-Outlet Surge Protector Power Strip 4000 Joules 8ft Extension Cord Rectangle for Home Office Gaming Room White
- Price
- $17.95
- Rating
- 4.8/5
- Reviews
- 490
- Age
- 1y ago
Newest
by launch date
10Ft Extension Cord with Multiple Outlets SUPERDANNY Flat Plug Surge Protector Power Strip 10 Ft Long Cord 6 Outlets & 3 USB Ports Charging Station for Home Office College Dorm Room Essentials
- Price
- $12.65
- Rating
- 4.7/5
- Reviews
- 8,298
- Age
- 9mo ago

TROND Surge Protector Power Strip with 360 Rotating Flat Plug 5 Widely Spaced Outlets with 2 USB C and 2 USB A 1440J Surge Protector Wall Mountable Extension Cord 6ft for Home Office Dorm White
- Price
- $21.40
- Rating
- 4.7/5
- Reviews
- 2,086
- Age
- 1y ago

Amazon Basics Rectangle 6-Outlet Surge Protector Power Strip with Circuit Breaker 600 Joule 2ft Cord White 2-Pack
- Price
- $11.29
- Rating
- 4.7/5
- Reviews
- 44,273
- Age
- 1y ago

Amazon Basics 12-Outlet Surge Protector Power Strip 4000 Joules 8ft Extension Cord Rectangle for Home Office Gaming Room White
- Price
- $17.95
- Rating
- 4.8/5
- Reviews
- 490
- Age
- 1y ago

Anker Power Strip 900J Surge Protector 35W Max
- Price
- $26.48
- Rating
- 4.8/5
- Reviews
- 1,319
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 33% of clicks, no more. An open shelf where new products get seen.
Brands
27 rising
Sellers
81
Est. top-5 brand share
62%
Top 20: 95%
Est. top-5 click share
33%
Top 20: 71%
Open market
32%
- Anker19%
- Addtam15%
- Amazon Basics13%
- TESSAN8%
- Belkin7%
- YISHU7%
Demand
Extension Block search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jan · busiest ÷ quietest = 1.9×
Search terms
Top Extension Block search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- white surge protector power strip26K/yr
- power strip white22K/yr
- white surge protector20K/yr
- angled power strip6K/yr
- right angle surge protector5K/yr
- white powerstrips with surge protector3K/yr
- narrow power strip4K/yr
- sideways power strip3K/yr
Reviews and returns
What reviews say buyers love and hate about Extension Block
We read the reviews and the return reasons for every product selling here.
“Didnt last”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
17 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Extension Block questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









