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Toshiba SD-K08G2B8TRT 8GB SDHC Class 4 Memory Card
Toshiba SD-K08G2B8TRT 8GB SDHC Class 4 Memory Card
Toshiba SD-K08G2B8TRT 8GB SDHC Class 4 Memory Card
Toshiba SD-K08G2B8TRT 8GB SDHC Class 4 Memory Card
Toshiba

Toshiba SD-K08G2B8TRT 8GB SDHC Class 4 Memory Card

Class 4 SDHC with a 5-year Toshiba warranty covers entry-level devices with modest speed requirements — reliable baseline storage where minimum 4MB/s write is all the device demands.

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Overview

The Toshiba SD-K08G2B8TRT is an 8GB SDHC memory card rated at Speed Class 4 — Toshiba guarantees a minimum sustained write speed of 4MB/s under SD Association test conditions. That number is the operative specification: everything else follows from it. Class 4 defines the entry tier of the SD speed class system, designed for devices that do not impose higher minimum write requirements. Standard-definition video recording, JPEG capture in cameras without rapid burst modes, and GPS data storage are use cases well within the Class 4 specification. The SDHC standard itself extends SD capacity to the 4GB–32GB range, compatible with any SDHC-capable host device — effectively all consumer electronics manufactured after 2008.

This card is the correct choice for users with well-matched, modest requirements — a basic point-and-shoot camera, a digital picture frame, a child's educational device, or a legacy GPS navigator. The write-protect switch adds a physical safeguard against accidental data loss, and Toshiba's 5-year limited warranty provides longer coverage than most competing cards at this tier. What this card does not do: it does not support UHS-I bus speeds, it will not keep pace with burst-mode shooting in modern mirrorless or DSLR cameras, and it is not rated for application storage in Android devices. The 8GB capacity and Class 4 speed rating are a matched pair — buy this card when both parameters are adequate for your specific device and use case, and step up to Class 10 or UHS-I when they are not.

Key Features

8GB storage capacity

Secure Digital High Capacity Device

Toshiba 5-Year Limited Warranty

Class 4 speed rating (min 4MB/sec)

Write-protect feature prevents accidental overwrites

Specifications

Model
SD-K08G2B8TRT
Capacity
8GB
Card Type
SDHC (Secure Digital High Capacity)
Speed Class
Class 4 (Minimum 4MB/s write)
Compatibility
SDHC-compatible devices
Warranty
5-Year Toshiba Limited Warranty
Write-Protect Switch
Yes

Frequently Asked Questions

This card uses the SDHC standard, which is compatible with any device that supports SDHC or SDXC (SDXC slots are backward-compatible with SDHC). Older SD-only devices manufactured before 2006 do not support SDHC — check your device manual to confirm SDHC support before purchasing.
Any device with an SDHC-compatible slot accepts this card. Original SD 1.x devices are not SDHC compatible — verify your device manual confirms SDHC support. Most cameras, tablets, GPS units, and media players manufactured after approximately 2008 include SDHC compatibility.
Class 4 guarantees a minimum sustained write speed of 4MB/s — the baseline SD speed class. This is sufficient for still photography in low-burst cameras and standard-definition video recording, but insufficient for continuous HD video, high-speed burst shooting, or fast card-to-computer transfer workflows.
Class 4 guarantees a minimum sustained write speed of 4MB/s. This is adequate for recording standard definition video, writing JPEG images from cameras with modest burst rates, and storing general files. It is not fast enough for reliable HD video recording at high bitrates — Class 10 or UHS-I cards are required for 1080p+ video on most modern cameras.
The physical write-protect switch on the card's side, when slid to the locked position, prevents any device from writing to or deleting files from the card. It's a hardware-level protection that the host device respects — useful for archiving images you don't want accidentally overwritten. Sliding it back to the unlocked position restores normal read/write access.
No — if your camera specifies UHS-I or Class 10 (minimum 10MB/s write), a Class 4 card may cause dropped video frames, buffer overflow during burst shooting, or error messages. Use this card only in devices whose minimum speed requirement is Class 4 or lower.
The physical write-protect slider on the card's side tells the host device not to write to the card, preventing accidental deletion or formatting. This is a host-level protection — the device reads the switch state and respects it, rather than the card enforcing write blocking in hardware.
The 5-year limited warranty covers manufacturing defects — if the card fails due to a defect in materials or workmanship within the warranty period, Toshiba will replace or repair it. It does not cover physical damage, accidental deletion of data, or data recovery. Keep your proof of purchase for warranty claims.
8GB accommodates thousands of JPEG photos from lower-megapixel cameras, several hours of standard definition video, or several gigabytes of general files. For modern DSLRs shooting RAW, high-resolution smartphones, or HD/4K video, 8GB fills quickly — a 24MP RAW file averages 25-35MB, meaning approximately 230-320 RAW frames before the card is full.
Toshiba's 5-year limited warranty is longer than most competing Class 4 cards, which typically carry 1–2 year coverage. The warranty covers manufacturing defects but not data recovery on card failure — back up critical data regardless of warranty length.

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