3.5-inch SATA surveillance hard drive, Seagate and WD, 1 to 16 TB, new and used

Seagate & WDSkyHawk · Purple · 3.5″ SATA

Surveillance & Enterprise Hard Drives · 1–16 TB

Surveillance HDD · Seagate & WD

3.5-inch SATA surveillance and enterprise drives, built for the duty cycle NVRs actually run — every channel, 7×24. We supply Seagate SkyHawk and WD Purple surveillance series plus enterprise-class models, from 1 to 16 TB, brand-new or used (tested).

1–16 TB · nine capacitiesSATA 3.5″ · internal interfaceSkyHawk · Purple · Seagate & WD linesNew & Used · used drives tested7×24 · NVR recording duty

CAPACITY & CONDITION

Capacity

Condition

Exact brand, model and price follow daily stock — send the capacity and condition you need on WhatsApp and we'll reply with today's available list. Every used drive is power-on tested and ships with its health report.

Get Best Price on WhatsApp Need the PDF datasheet? Get it on WhatsApp →

In-stock models: 3 days to your designated warehouse after payment · Out-of-stock or insufficient stock: 7–15 working days

Sample quantities are welcome — testing one or two units first is the normal way to start.

Every drive — new or used — is powered on and health-checked before it ships; used drives include a SMART health report.

1–16 TBnine capacity options

SATA 3.5″fits any NVR bay

2brands — Seagate & WD

7×24continuous duty design

This page covers the 3.5-inch SATA hard drives we supply for video surveillance projects: Seagate SkyHawk and WD Purple surveillance series, plus enterprise-class models from both brands for storage servers and archive pools. Nine capacities from 1 to 16 TB, available brand-new (factory sealed) or used (power-on tested, with health report). We don't publish a fixed model table, because the mix on the shelf changes with daily stock — tell us the capacity and condition you need, and we'll reply with what's available today.

Is this the right drive for you?

Plain-language guide — based only on what we actually supply.

NVR recording poolDrops into any 3.5-inch SATA bay — from single-bay shop NVRs to 8-bay rack recorders. Surveillance series like SkyHawk and Purple carry firmware tuned for many cameras writing at once.

Brand-new or used?Brand-new for front-line recording pools that must run for years; used (tested) stretches the budget for lab setups, spare bays and short-retention projects. Every used drive ships with its health report — you see the power-on hours before you pay.

Free capacity planningRecordable days = channels × bitrate × schedule. Send us your camera count and streams — we'll calculate the storage for you, free, before you buy a single drive.

Not the right pick if you need…

Portable or USB-powered backup — these are internal 3.5-inch drives
A tiny two-camera kit where recording stays on the camera's microSD — a Red Card MT covers that for less
A single copy of critical data on a used drive — for sole-copy archives choose brand-new, or add redundancy

Why a surveillance-rated drive for a video recorder?

An NVR writes every channel around the clock — a duty cycle far beyond what desktop drives are rated for. Seagate's SkyHawk and WD's Purple lines exist exactly for this: firmware and workload ratings built around continuous multi-stream video writes. For storage servers and archive pools we also supply enterprise-class models from both brands. Whichever you pick, the drive is matched to the job — not whatever happens to be lying around.

Seagate SkyHawk · WD PurpleEnterprise models availableUsed drives tested + report

Using your own freight forwarder? No problem.

For small and mid-size orders, we deliver directly to your designated forwarder's warehouse in China (EXW / FOB Guangzhou). From hand-over onward, international shipping and destination-side arrangements are handled by your forwarder — the way you already work.

EXW / FOB GuangzhouDelivery to your forwarder's warehouseNo minimum order

Note: no forwarder yet? For small orders we can also arrange door-to-door courier.

How to get a better price

Volume DiscountBulk quantities of a single capacity

Mix & Match DiscountMix any categories & models storewide in one order — no quantity limit

BETTER

End-User Project PriceEnd user with a real project? Send your requirements / BOQ — best price, plus professional system design & planning advice

BEST

All discounts are quoted personally — message me on WhatsApp ↑

Key Features

What you actually get — no invented numbers.

Seagate SkyHawk & WD Purple surveillance series — firmware built for 7×24 multi-camera recording

Enterprise-class models from both brands for storage servers and archive pools

Nine capacities: 1 / 2 / 4 / 6 / 8 / 10 / 12 / 14 / 16 TB

3.5-inch SATA — fits any standard NVR or server drive bay

Brand-new factory-sealed, or used power-on tested — used drives ship with a SMART health report

Free storage sizing — send camera count and bitrates, we calculate your recordable days

What we supply

No invented spec tables — just the honest version of what you'll actually receive.

SEAGATE · WD

Surveillance & enterprise series, 1–16 TB

Seagate SkyHawk and WD Purple surveillance drives, plus enterprise-class models from both brands. Brand-new factory-sealed, or used (power-on tested, health report included). The exact model list follows daily stock — message us the capacity and condition, and we reply with today's options.

STORAGE SIZING

How many days will it record?

Actual recordable days depend on channel count and bitrate — as a rough guide, 16 cameras at 4 Mbps fill 8 TB in about 11–12 days. Tell us your camera count and stream settings on WhatsApp and we'll size the storage for you, free.