Surveillance hard drives in our warehouse — photo

Seagate & WDSkyHawk · Purple · 3.5″ SATA

Surveillance & Enterprise Hard Drives · 1–16 TB

Surveillance HDD · Seagate & WD

Name: Surveillance HDD — Seagate & WD, 1–16 TB, New & Used
Availability: InStock

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

Used · tested — reference priceUS$ 88/ drive

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.

Used drive reference prices (US$ per drive)

1 TB	US$ 35
2 TB	US$ 50
4 TB	US$ 88
6 TB	US$ 136
8 TB	US$ 297
10 TB	US$ 314
12 TB	US$ 344
14 TB	US$ 359
16 TB	US$ 409

Used, power-on tested, with health report. Reference prices EXW China; final price depends on quantity and the day's stock, and is fixed on your quotation.

Get Best Price on WhatsApp Request a quote ↓

Lead time · In stock: at your forwarder’s China warehouse 3 days after payment · Not in stock: 7–15 working days · Then air 5–10 days / sea 25–45 days to your port

Terms · Sample orders welcome · Quotation / PI fixes models, prices, Incoterms (EXW or FOB, each quoted separately), lead time and T/T payment · Defective units: free spare units agreed per order (quantity depends on order size) and written into the quotation · Warranty: up to 5 years on Zhongxin Shutong industrial switches, manufacturer warranty on other brands · Full terms, warranty & RMA

How many terabytes for your channels and days? Use the storage calculator →

Need the PDF datasheet? Get it on WhatsApp →

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?

Seagate SkyHawk · WD PurpleEnterprise models availableUsed drives tested + report

Using your own freight forwarder? No problem.

EXW / FOBDelivery to your forwarder's warehouseNo minimum order

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

Verified Project PriceDistributor, integrator or end user with a real project? Send the BOQ — project pricing plus free system design. Partner projects are protected: we never quote your end customer behind you

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.

Surveillance Hard Drive FAQ — Seagate & WD 1–16 TB

What is the difference between a surveillance hard drive and a regular desktop drive?

Seagate SkyHawk and WD Purple are surveillance-series drives engineered for 7×24 continuous NVR recording — the disk writes video around the clock, not the short bursts a desktop drive is designed for. We supply these plus enterprise-class models from both brands, all in the standard 3.5-inch SATA format NVRs use.

How many days of footage will an 8 TB drive hold?

As a rough guide, 16 cameras streaming at 4 Mbps fill 8 TB in about 11–12 days. Fewer cameras or lower bitrates stretch that — 8 cameras at 4 Mbps roughly doubles it to 22–24 days. Send us your channel count and bitrate and we will size the right capacity for your retention target.

What capacities are available?

Nine capacities from 1 TB to 16 TB, all 3.5-inch SATA. The range covers Seagate SkyHawk and WD Purple surveillance series plus enterprise-class drives from both brands, so you can match each NVR's bay count and retention requirement in a single order.

Do you sell new or used drives?

Both. New drives come factory-sealed. Used drives are power-on tested before shipping and each ships with a health report, so you know the condition of every unit before it goes into a customer's NVR. Specify new, used or a mix when requesting your quotation.

Will these drives fit my NVR?

They are standard 3.5-inch SATA drives — the format NVR hard-drive bays take. Check the maximum capacity per bay your recorder supports, then choose from the 1–16 TB range. Send us your NVR model and channel count and we will confirm a suitable capacity before you order.

How much does a used surveillance hard drive cost?

Reference prices for used, power-on tested drives with health report, in US$ per drive (EXW China): 1 TB 35, 2 TB 50, 4 TB 88, 6 TB 136, 8 TB 297, 10 TB 314, 12 TB 344, 14 TB 359, 16 TB 409. Brand-new drives are quoted on request. The final price depends on quantity and the day's stock and is fixed on your quotation.

How do you ship export orders?

For small and mid-size orders we deliver directly to your designated freight forwarder's warehouse in China, on EXW or FOB terms. From hand-over onward the international leg runs under your forwarder's control, so the shipment follows your own consolidation plan and routing.

Ordering questions — samples, shipping, payment, lead time and genuine stock — are answered once on our FAQ page.