- Flapen Score
- 34 / 100Ranks 6,878 of 8,347 Electronics niches · −9 vs the category median of 4334
- Market size
- $117K/yr15K searches / yr
- 90-day growth
- +50.3%search demand this quarter
- Competition
- 93%top-5 click share · 3 brands · 156 sellers
Flapen Score
4tb External against its category
The dotted line is the Electronics average. Past it, 4tb External is stronger. Inside it, weaker.
Market
The 4tb External market on Amazon at a glance
Shoppers on Amazon United States searched for 4tb External 15K times last year and spent an estimated $117K. All 3 brands take every click. Demand peaks in Apr–Dec. Flapen scores it 34 out of 100, a Fail.
01 · Demand
An estimated 5.6% of those searches ended in a purchase.
Shoppers searched for this 15K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 5.6% of those searches ended in a purchase. Searches in the last 90 days moved +50.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated $117K a year.
- Searches, last 12 months
- 15K
- Growth, 90 days vs prior 90
- +50.3%
- Conversion, latest week
- 5.6%
- Market size, estimated
- $117Ka year
- Peak month
- December3.1× the quietest month
- Top search term
- wd my passport 4tb6K searches a year
02 · Price
A sale here is worth $139.02.
Listings sell for $139.02 on average, from $126.14 to $153.23. Amazon reports units sold in ranges. This niche sold 750 to 1K a year. The average listing sells 0 to 100 of them. At $139.02 that is $0 to $14K a year per listing.
- Average price
- $139.02above the $15 to $100 sweet spot
- Price range
- $126.14–$153.23
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 750–1K
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$14K
- Returns
- 2.5%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
57% 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 #14 within Data Storage. It carries 73,175 reviews at 4.54 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 57%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #14in Data Storage
- Average rating
- 4.54 starsAmazon United States average 4.42 stars
- Average reviews
- 73,175per listing
- Listings tracked
- 7
04 · Newcomers
Brands here are settling in.
The brands on the shelf have sold for 52 months on average, so the names here are settling in.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 52 months
Products
Top 4tb External 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 30, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
WD 4TB My Passport Portable External Hard Drive Black backup software with defense against ransomware and password protection USB 3.1/USB 3.0 compatible - WDBPKJ0040BBK-WESN
- Price
- $140.35
- Rating
- 4.6/5
- Reviews
- 11,256
- Age
- 6y ago

WD 4TB Elements Portable External Hard Drive for Windows USB 3.2 Gen 1/USB 3.0 for PC & Mac Plug and Play Ready - WDBU6Y0040BBK-WESN
- Price
- $133.42
- Rating
- 4.6/5
- Reviews
- 40,006
- Age
- 9y ago

WD 5TB My Passport Portable External Hard Drive Black backup software with defense against ransomware and password protection USB 3.1/USB 3.0 compatible - WDBPKJ0050BBK-WESN
- Price
- $153.23
- Rating
- 4.5/5
- Reviews
- 24,728
- Age
- 6y ago

Western Digital WD 5TB Elements Portable External Hard Drive for Windows USB 3.2 Gen 1/USB 3.0 for PC & Mac Plug and Play Ready - WDBU6Y0050BBK-WESN
- Price
- $139.22
- Rating
- 4.6/5
- Reviews
- 128,000
- Age
- 6y ago

WD 4TB My Passport Portable External Hard Drive Red backup software with defense against ransomware and password protection USB 3.1/USB 3.0 compatible - WDBPKJ0040BRD-WESN
- Price
- $137.20
- Rating
- 4.5/5
- Reviews
- 23,230
- Age
- 6y ago
Trending
estimated 90-day click momentum
WD 4TB My Passport Portable External Hard Drive Red backup software with defense against ransomware and password protection USB 3.1/USB 3.0 compatible - WDBPKJ0040BRD-WESN
- Price
- $137.20
- Rating
- 4.5/5
- Reviews
- 23,230
- Age
- 6y ago

WD 5TB My Passport Portable External Hard Drive Black backup software with defense against ransomware and password protection USB 3.1/USB 3.0 compatible - WDBPKJ0050BBK-WESN
- Price
- $153.23
- Rating
- 4.5/5
- Reviews
- 24,728
- Age
- 6y ago

WD 4TB My Passport Portable External Hard Drive Black backup software with defense against ransomware and password protection USB 3.1/USB 3.0 compatible - WDBPKJ0040BBK-WESN
- Price
- $140.35
- Rating
- 4.6/5
- Reviews
- 11,256
- Age
- 6y ago

Western Digital WD 5TB Elements Portable External Hard Drive for Windows USB 3.2 Gen 1/USB 3.0 for PC & Mac Plug and Play Ready - WDBU6Y0050BBK-WESN
- Price
- $139.22
- Rating
- 4.6/5
- Reviews
- 128,000
- Age
- 6y ago

Seagate Portable 4TB External Hard Drive HDD USB 3.0 for PC Mac Xbox & PlayStation - 1-Year Rescue Service (SRD0NF1)
- Price
- $126.14
- Rating
- 4.6/5
- Reviews
- 272,007
- Age
- 8y ago
Newest
by launch date
WD 4TB My Passport Portable External Hard Drive Red backup software with defense against ransomware and password protection USB 3.1/USB 3.0 compatible - WDBPKJ0040BRD-WESN
- Price
- $137.20
- Rating
- 4.5/5
- Reviews
- 23,230
- Age
- 6y ago

Western Digital WD 5TB Elements Portable External Hard Drive for Windows USB 3.2 Gen 1/USB 3.0 for PC & Mac Plug and Play Ready - WDBU6Y0050BBK-WESN
- Price
- $139.22
- Rating
- 4.6/5
- Reviews
- 128,000
- Age
- 6y ago

WD 4TB My Passport Portable External Hard Drive Black backup software with defense against ransomware and password protection USB 3.1/USB 3.0 compatible - WDBPKJ0040BBK-WESN
- Price
- $140.35
- Rating
- 4.6/5
- Reviews
- 11,256
- Age
- 6y ago

WD 5TB My Passport Portable External Hard Drive Black backup software with defense against ransomware and password protection USB 3.1/USB 3.0 compatible - WDBPKJ0050BBK-WESN
- Price
- $153.23
- Rating
- 4.5/5
- Reviews
- 24,728
- Age
- 6y ago

Seagate Portable 4TB External Hard Drive HDD USB 3.0 for PC Mac Xbox & PlayStation - 1-Year Rescue Service (SRD0NF1)
- Price
- $126.14
- Rating
- 4.6/5
- Reviews
- 272,007
- Age
- 8y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 93% of clicks. A locked shelf that new listings rarely crack.
Brands
3 falling
Sellers
156
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
93%
Top 20: 100%
Open market
0%
- WD72%
- Western Digital25%
- Seagate3%
Demand
4tb External search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Apr, Dec · busiest ÷ quietest = 3.1×
Search terms
Top 4tb External search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- wd my passport 4tb6K/yr
- wd 4tb external hard drive7K/yr
- western digital 4tb external hard drive2K/yr
Reviews and returns
What reviews say buyers love and hate about 4tb External
We read the reviews and the return reasons for every product selling here.
“Doesnt 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.
16 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 4tb External 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









