18tb hdd
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Returns
Good2.3%return rate — above 6% kills the launch gate
Competition
Good47%top-5 click share — leaders hold, buyers still browse
Avg price
Okay€333.45avg listing price — sweet spot $15–$100
Review moat
Bad5,199.18avg incumbent reviews — the moat a new listing must climb
Growth
Bad-22.8%90-day search growth — must beat 0% to launch
Market size
Bad€50K€50K/yr · 32K searches
Conversion
Bad0.5%search→purchase rate — share of searches ending in a sale
Brand share
Bad100%top-5 brand share — brand-locked demand
Price range
Bad€185.18–€571.63cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
The top 5 products take 47% of clicks — established leaders, but buyers still shop beyond them.Brands
4 falling
Sellers
346
Top-5 brand share
100%
Open market
0%
- Seagate53%
- WD39%
- TOSHIBA6%
- Western Digital2%
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 28 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
WD Elements Desktop-Speicher 18 TB (Desktop-Speicher USB 3.0-kompatibel Zusatzspeicher für Fotos Musik Videos und alle anderen Dateien stoßfest) Schwarz
WD€276.484.5★19,718 rev
WD My Book 18 TB USB 3.0 Desktop-Festplatte mit Passwortschutz (Desktop-Speicher Sicherungssoftware Hardwareverschlüsselung SuperSpeed USB)
WD€285.024.4★7,469 rev
Seagate Exos X20 18TB HDD 3 5 interne Festplatte 256MB Cache SATA 6.0 GB/s 7.200 U/min HDD - Modellnr.: ST18000NM003D (Generalüberholt)
Seagate€266.334.5★29 rev
Seagate Exos X20 Enterprise 18TB HDD interne Festplatte Hyperscale 12GB/s SAS 7.200 U/min Modellnr.: ST18000NM003D
Seagate€292.764.2★91 rev
Seagate Exos 28TB Interne Server Festplatte ST28000NM000C 3 5 Zoll HDD SATA 6Gb/s 7200RPM 512MB Cache (Generalüberholt)
Seagate€359.524.1★129 rev
Newest
by launch date
Seagate IronWolf 8TB NAS Interne Festplatte HDD 3.5 Zoll 5400 U/Min 256 MB Cache SATA 6 Gb/s silber inkl. Data Rescue Service (ST8000VNZ02)
Seagate€185.187,084 rev
Seagate Exos X22 22TB Interne Festplatte Factory Recertified 3.5 Zoll SATA 6 Gbits/s 512MB ST22000NM000C (Generalüberholt)
Seagate€274.90180 rev
Toshiba MG Series MG08ACA16TE Interne Server-Festplatte 16 TB 3 5 Zoll SATA 6 GB/s 7200 RPM 512 MB 24/7 Cache
TOSHIBA€230.3166 rev
Seagate Exos 28TB Interne Server Festplatte ST28000NM000C 3 5 Zoll HDD SATA 6Gb/s 7200RPM 512MB Cache (Generalüberholt)
Seagate€359.52129 rev
Seagate Exos 26TB Int. Server Festplatte ST26000NM000C (Factory Recertified) 3 5 Zoll HDD SATA3 7200RPM 512MB Cache (Generalüberholt und Zertifiziert
Seagate€319.7564 rev
Trending
90-day click momentum
WD Elements Desktop-Speicher 22 TB (Desktop-Speicher USB 3.0-kompatibel Zusatzspeicher für Fotos Musik Videos und alle anderen Dateien stoßfest) Schwarz
WD€337.234.5★
Seagate IronWolf Pro 20TB Enterprise Internal NAS HDD CMR 3.5 Inch SATA 6GB/s 7.200 RPM 256MB Cache for RAID NAS Data Rescue Service Frustration Free Packaging (ST20000NTZ01)
Seagate€412.194.5★
WD My Book Duo 28 TB RAID Desktop-Speicher (Passwortschutz Sicherungssoftware Hardwareverschlüsselung USB 3.0 sofort mit RAID-0 einsatzbereit)
WD€571.634.0★
Western Digital Ultrastar DC HC550 Enterprise-Festplatte 18 TB (3 5 Zoll SATA 6 Gbit/s SAS 12 Gbit/s 7200 U/min 512 MB Cache 5 Jahre Garantie)
Western Digital€383.463.8★
Seagate Exos X20 Enterprise 18TB HDD interne Festplatte Hyperscale 12GB/s SAS 7.200 U/min Modellnr.: ST18000NM003D
Seagate€292.764.2★
Demand & seasonality
Weekly Amazon search volume, last 85 weeks — -22.8% search growth over the last 90 days.Peak months: Nov, Dec · busiest ÷ quietest = 2.9×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Preis Leistung OK”
“Top Produkt”
“Große Platte”
“Mach was es soll”
“Externe USB3 Platte mit guter Geschwindigkeit”
“dauert lange genug”
“Passt”
“Passen in meine Synology”
“Kompartibel und leicht zu installieren”
“gab keine Probleme mit der Wärmeentwicklung.”
What buyers complain about
“Langzeit Haltbarkeit und weitere Erfahrungen stehen noch aus”
“Extrem laut”
“Totalausfall”
“alles Ok, teuer”
“ist langsamer in random reads (schlecht für Programme).”
“Also ich kenn das ja, dass auf Festplatten die etwas größer sind der Platz etwas begrenzter ist”
“Festplatte wird von macOS nicht erkannt”
“EXTREME Hitzeentwicklung”
“grenzt schon fast an Betrug”
“Da die Festplatte als Langzeitbackupn genutzt werden sollte, war es für mich nicht tragbar sie zu behalten”