Enterprise 3.5" HDD, 16 TB
In stock nowfrom $699.00
Enterprise-grade 3.5" SATA hard drive ideal for storage-intensive UniFi camera security and NAS systems.
Coming soonGoogle PlayView on store.ui.com ↗Watch this product in NotiFi and get a push the moment it restocks.
Usually sells out in about 3 hoursEstimate
Availability
last 90 days
Availability score
34/100 · Uncommon
45%
availability
~5 days
restocks every
19
restocks
18
sell-outs
3 days
avg time in stock
3 hours
median time in stock
4 weeks
longest in stock
5 minutes
shortest in stock
Stock history
times in ET
In stock 1 week· in stock now
Sep 30, 3:10 PM → now
In stock 30 minutes
Sep 30, 9:20 AM → Sep 30, 9:50 AM ET
In stock 18 hours
Sep 29, 3:11 PM → Sep 30, 9:10 AM ET
In stock 6 hours
Sep 14, 1:10 PM → Sep 14, 7:10 PM ET
In stock 4 weeks
Jul 21, 2:10 PM → Aug 19, 4:10 PM ET
In stock 2 hours
Jul 16, 1:25 PM → Jul 16, 3:35 PM ET
In stock 15 hours
Jul 8, 4:10 PM → Jul 9, 7:05 AM ET
In stock 50 minutes
Jul 2, 1:20 PM → Jul 2, 2:10 PM ET
In stock 3 hours
Jul 2, 9:10 AM → Jul 2, 12:10 PM ET
In stock 4 days
Jun 26, 2:10 PM → Jul 1, 12:10 AM ET
Showing the 10 most recent windows of 19 tracked.
Daily availability
last 8 weeks
August – October
M
T
W
T
F
S
S
Restock patterns
19 observed restocks
Restocks by weekday
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Restocks by time of day · ET
12a
6a
8a
10a
12p
2p
4p
6p
8p
Price history
changes since tracking began
$689.00 → $699.00
Sep 24, 2026
$659.00 → $689.00
Sep 17, 2026
$649.00 → $659.00
Sep 4, 2026
$649.00 → $649.00
Aug 28, 2026
$629.00 → $649.00
Aug 28, 2026
$599.00 → $629.00
Aug 14, 2026
$569.00 → $599.00
Jul 14, 2026
$539.00 → $569.00
Jul 13, 2026
Hard-to-get advanced hosting
All advanced hosting →
Quick answers
- Is the Enterprise 3.5" HDD, 16 TB in stock right now?
- Yes. At NotiFi's most recent check of the official US UniFi store, at least one Enterprise 3.5" HDD, 16 TB variant was purchasable. Popular gear can sell through quickly, so if you need it, order sooner rather than later.
- How often does the Enterprise 3.5" HDD, 16 TB restock?
- NotiFi observed 19 restocks in the last 90 days, with sold-out gaps averaging about 5 days. Past cadence is not a promise, but it is the best available signal.
- How long does the Enterprise 3.5" HDD, 16 TB stay in stock?
- The median in-stock window over the last 90 days was about 3 hours. Short windows are exactly why an alert beats manual checking.
- How do I get notified when the Enterprise 3.5" HDD, 16 TB is back in stock?
- Watch it in NotiFi, the UniFi stock alert app for iPhone. NotiFi checks every product and variant on the official store continuously and pushes within minutes of stock flipping; Ultra plans can also forward alerts to Discord, Slack, or Home Assistant via webhooks.
The Enterprise 3.5" HDD, 16 TB is purchasable right now. Before you commit, two things worth reading: Sold Out vs Coming Soon: store labels explained and UniFi store vs resellers.
Embed the live stock badge
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Markdown [](https://getnotifi.app/products/uacc-hdd-e-16tb) HTML <a href="https://getnotifi.app/products/uacc-hdd-e-16tb"><img src="https://getnotifi.app/badge/uacc-hdd-e-16tb" alt="Enterprise 3.5" HDD, 16 TB stock"></a>
The price-history chart embeds the same way and re-renders on every observed price change:
Markdown [](https://getnotifi.app/products/uacc-hdd-e-16tb)
Never miss the next Enterprise 3.5" HDD, 16 TB restock.
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