Accessories & Cables › TF-MT · 32–256 GB

TF Red Card MT Series surveillance microSD card 32GB to 256GB

UniviewMT Series · Surveillance Grade

Surveillance microSD Card · MT Series · 32–256 GB

TF Red Card · MT Series

High-endurance surveillance TF card for 7×24 video recording and harsh-environment IoT — 3000 P/E cycles, −25 °C to 85 °C, four capacities from 32 GB to 256 GB. This is the card we recommend by default for CCTV camera local storage.

3000 P/E · endurance rating95 MB/s · read speed65–70 MB/s · write speed−25–85 °C · operating rangeA1 · app performanceHealth · card life monitoring

Choose your capacity — four models on this page

All four capacities share the same endurance and temperature rating — pick by retention days. At a 4 Mbps main stream, 256 GB keeps roughly 5–6 days of continuous footage; halve the bitrate or record on motion and it stretches much further.

We also supply Kingston, SanDisk and other storage brands — including high-speed TF cards for phones, drones and other personal devices. Ask us on WhatsApp for models and availability.

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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 →

Corporate orders are registered with the manufacturer under your company name — genuine supply you can verify at the source.

3000P/E cycles — 3–6× ordinary cards

95 MB/ssequential read

−25–85°Coperating temperature

7×24continuous-write design

The TF Red Card MT series is the surveillance-grade line of our TF card family, offered in four capacities: TF-32G-MT, TF-64G-MT, TF-128G-MT and TF-256G-MT. Rated at 3000 program/erase cycles — roughly 3 to 6 times the life of an ordinary consumer card — it is designed for the write pattern that kills normal cards: continuous, around-the-clock video recording. The −25 °C to 85 °C operating range covers sun-baked camera housings and outdoor bullet cameras, and on-card health monitoring lets compatible recorders report remaining card life before failure. All capacities read at 95 MB/s and meet the A1 application performance class.

Is this the right card for you?

Plain-language guide — based only on what this product actually does.

CCTV camera local storageContinuous or motion recording in the camera's SD slot — this is our default recommendation for that job, full stop.

Hot, exposed installationsSun-baked housings, rooftop poles, desert sites — the −25–85 °C rating keeps the card in spec where 0–70 °C cards throttle or die.

Harsh-environment IoTGateways, industrial controllers and telemetry loggers that write small blocks all day benefit from the same 3000 P/E endurance.

Not the right pick if you need…

Maximum transfer speed — the T Purple series reads at 100 MB/s and writes up to 85 MB/s
A budget card for occasional files — the T-C White series costs less for everyday storage
Terabytes of NVR storage — a surveillance hard drive is the right tool once recording moves to the recorder

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Key Features

The complete series capability list.

3000 P/E cycle high-endurance flash (MLC/TLC)

Designed for 7×24 continuous video recording

95 MB/s read · 65–70 MB/s write across the series

−25 °C to 85 °C operating temperature

A1 application performance class

Card health monitoring on compatible recorders

Who uses it, where it goes and how to use it

Written for the Uniview TF Red Card MT series (TF-32G-MT to TF-256G-MT) from its own specifications: surveillance-grade microSD, 3000 P/E cycles, −25 °C to 85 °C, 95 MB/s read, 65–70 MB/s write, health monitoring.

Who it is for

Installers adding storage inside IP cameras — This is the series we recommend by default for the camera's SD slot: the 3000 P/E rating is made for the non-stop write pattern of 7×24 recording, which is what wears out ordinary cards.
Outdoor cameras in hot or cold climates — Bullets and domes in direct sun, rooftop poles and desert sites: the −25 °C to 85 °C range covers housings that run far hotter than the air around them, where 0–70 °C cards are out of spec.
Standalone and remote cameras without an NVR — Shops, homes and remote sites that record only to the card and view through the app; the 128 GB and 256 GB sizes keep about 3 and 6 days at a 4 Mbps main stream.
Industrial IoT and data loggers — Gateways, controllers and telemetry loggers that write small blocks all day get the same 3000 P/E endurance and wide temperature range.

Where and how to use it

Format it in the camera — Insert the card with the camera powered off, then format it from the camera's web page, the NVR or the app before the first recording. A card formatted on a PC or phone may be shown as abnormal or unformatted by the camera.
Match the camera's maximum card size — Check the microSD limit in the camera's own specifications before choosing TF-256G-MT. If a camera supports less, use the largest size it lists; a card above the limit may not be recognised.
Turn on overwrite and set the bitrate — Enable overwrite (loop recording) so the camera deletes the oldest footage when the card is full. Retention depends on bitrate: halving the main stream doubles the days, and motion or event recording stretches it further.
Close the SD cover tightly — On outdoor cameras the card sits behind a cover or inside the housing; refit the seal and screws fully after inserting the card, or rain and condensation get in and damage both the card and the camera.
Check card health, replace before it fails — On recorders that support it, health monitoring reports the card's remaining life. Check it during routine visits and replace the card when the reported life gets low, and whenever the camera shows recording errors.

How many days each MT card records

All four capacities have the same 3000 P/E endurance, −25 °C to 85 °C range, 95 MB/s read and A1 class, so choose by retention. The figures below are continuous 24-hour recording; a 4 Mbps stream writes only 0.5 MB/s, so write speed is never the limit for a camera.

	Write speed	2 Mbps	4 Mbps	8 Mbps
TF-32G-MT · 32 GB	65 MB/s	1.5 d	18 h	8.9 h
TF-64G-MT · 64 GB	70 MB/s	3.0 d	1.5 d	18 h
TF-128G-MT · 128 GB	70 MB/s	5.9 d	3.0 d	1.5 d
TF-256G-MT · 256 GB	70 MB/s	11.9 d	5.9 d	3.0 d

Pick TF-128G-MT or TF-256G-MT for continuous recording: about 3.0 and 5.9 days at 4 Mbps, enough to review an incident after a weekend.
TF-32G-MT and TF-64G-MT suit motion-only recording or a backup copy while the NVR keeps the long archive.
Need weeks of recording from many cameras? Record on an NVR with surveillance hard drives and keep the card as a local backup.

d = days, h = hours. Days = capacity × 10^9 ÷ (bitrate ÷ 8 × 86400), using the nominal capacity and continuous recording of the main stream only; usable space after formatting is a little lower, and a recorded sub stream adds to the bitrate.

Full Specifications

Series specifications — technical values in English.

Highlighted rows differ between the models:TF-32G-MTTF-64G-MTTF-128G-MTTF-256G-MT

Performance

Capacity	32G · 32 GB64G · 64 GB128G · 128 GB256G · 256 GB
Sequential Read	95 MB/s
Sequential Write	32G · 65 MB/s64G · 70 MB/s128G · 70 MB/s256G · 70 MB/s
Application Performance	A1

Reliability & General

Endurance	3000 P/E cycles
Flash Type	MLC / TLC
Operating Temperature	-25 °C to 85 °C
Health Monitoring	Supported — remaining-life reporting on compatible recorders
Form Factor	microSD (TF)

Surveillance microSD Card FAQ — TF Red Card MT Series

How is a surveillance microSD card different from an ordinary TF card?

The MT series is rated for 3000 P/E cycles and runs from −25 °C to 85 °C, so it survives the constant overwrite of 7×24 CCTV loop recording and the heat inside outdoor camera housings. Ordinary consumer cards are not specified for that duty and wear out early in continuous recording.

Which capacity should I choose for an IP camera?

Four options: 32, 64, 128 and 256 GB. A larger card gives a longer loop before old footage is overwritten and spreads write cycles across more cells, which extends service life. Retention depends on your camera's bitrate — send the model and stream settings and we will estimate recording days.

How long will the card last recording 24/7?

Endurance is rated at 3000 P/E cycles on MLC/TLC flash. On compatible recorders the card reports remaining life through health monitoring, so you can schedule replacement before failure instead of discovering a dead card after an incident. Actual service life depends on bitrate and how often the loop overwrites.

Can it handle outdoor heat and cold?

Yes. The operating range is −25 °C to 85 °C, which covers sun-baked housings in hot climates as well as cold-region installs, so the card can live inside an outdoor bullet or PTZ camera year-round. Sequential read is 95 MB/s; write is 65 MB/s at 32 GB and 70 MB/s at 64–256 GB.

Does health monitoring work on any recorder?

Remaining-life reporting works on compatible recorders, which read the card's health data and warn you as the flash wears down. In other devices the card still records normally — you just don't get the wear read-out. Ask us to confirm compatibility with your recorder model before ordering in volume.

How do I make sure I get genuine Uniview cards?

For corporate buyers we submit the purchase order to Uniview under your own company name, so your company appears on the official order and the goods trace directly back to the factory. For delivery, we hand over to your designated forwarder's warehouse in China on EXW or FOB terms.

My camera shows the TF Red Card MT as abnormal or unformatted. What should I do?

Format it inside the camera: open the camera's web page, NVR or app, go to the storage settings and run format, then enable recording to the card. This is normal for a new card or one used in a PC, phone or another camera. If it still shows abnormal after formatting, power the camera off, reseat the card and check that its capacity is within the camera's listed microSD limit.

What is the largest TF Red Card MT my camera can take?

It depends on the camera, not the card: look for the microSD maximum in the camera's specifications. The MT series goes up to 256 GB (TF-256G-MT), so any camera that lists 256 GB or more can use every size in the series. For a camera with a lower limit, choose the largest MT size it lists, or send us the camera model and we will check.

Why do SD cards in cameras fail early, and what should I avoid with the MT series?

The usual causes are constant writing on a card not rated for it, heat inside the housing, power cuts during a write, pulling the card out while the camera is recording, and fake cards with less real capacity. The MT series addresses the first two with 3000 P/E cycles and a −25 °C to 85 °C range. For the rest: power the camera off before removing the card, put the camera or switch on a UPS where power is unstable, and buy cards from a traceable source.

Is the TF Red Card MT a U3 / V30 card, and is it fast enough for 4K cameras?

The page lists the A1 class and measured speeds, 95 MB/s read and 65–70 MB/s write, but not a U or V speed-class marking, so confirm with us if your tender requires one. For speed itself there is plenty of margin: a camera recording at 8 Mbps writes about 1 MB/s, and even a 4K stream at 16 Mbps needs about 2 MB/s, far below 65 MB/s.

Should I use the Red MT or the Blue T-L in a dashcam or doorbell?

Both work. The Blue T-L is tuned for loop and event recording at a balanced price. Choose the Red MT when the device records all the time, for example a dashcam with parking mode, or when it sits in strong sun or below 0 °C, because MT is rated 3000 P/E and −25 °C to 85 °C.

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