KIOXIA
Kioxia SSD 512GB BG4 M.2 2280 80mm L57448 NVMe PCIe 3.0 Solid State Drive
Bottom line: The Kioxia SSD 512GB BG4 M.2 2280 80mm KBG40ZNV512G L57448 NVMe PCIe 3.0 is a specs-and-price decision rather than a crowd-consensus one in the ssds & storage category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.
As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →
Pros & Cons
Pros
- ✓ Sequential read/write up to (MB/s): 2200/1400
- ✓ Backed by KIOXIA's warranty and support channels
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated
Manufacturer description
Kioxia SSD 512GB BG4 M.2 2280 80mm KBG40ZNV512G L57448 NVMe PCIe 3.0 Solid State Drive for Dell HP Lenovo Laptop Desktop Ultrabook
SpecPicks Verdict
SpecPicks scored Kioxia SSD 512GB BG4 M.2 2280 80mm KBG40ZNV512G L57448 NVMe PCIe 3.0… using a rating × review-volume × price-fit model applied to published specs and reviews across the ssds & storage category. KIOXIA's ssds & storage lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for ssds & storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- Sequential read/write up to (MB/s): 2200/1400
- Random read/write up to (IOPS): 330K/190K
- Form factor, Interface: M.2 2280 PCIe Gen3 x4
- Compatibility: all systems with M.2 2280 NVMe PCIe slot
- MTTF: 1.5 million hours
Full Specifications
| MTTF | 1.5 million hours |
|---|---|
| Brand | KIOXIA |
| Weight | 512g |
| Model Name | Kioxia BG4 Series |
| Read Speed | 2200 megabytes_per_second |
| Form Factor | M.2 2280 |
| Media Speed | 1400 megabits_per_second |
| Model Number | KBG40ZNV512G |
| Compatibility | all systems with M.2 2280 NVMe PCIe slot |
| Built-In Media | 1 x SATA Data Cable |
| Hard Disk Size | 512 GB |
| Hard-Drive Size | 512 GB |
| Mfr Part Number | KBG40ZNV512G |
| Number of Items | 1 |
| Special Feature | Portable |
| Installation Type | Internal Hard Drive |
| Compatible Devices | Desktop, Gaming Console, Laptop |
| Data Transfer Rate | 2200 megabytes_per_second |
| Enclosure Material | Nand Flash |
| Additional Features | Portable |
| Full listing title | Kioxia SSD 512GB BG4 M.2 2280 80mm KBG40ZNV512G L57448 NVMe PCIe 3.0 Solid State Drive for Dell HP Lenovo Laptop Desktop Ultrabook |
Ready to buy?
Kioxia SSD 512GB BG4 M.2 2280 80mm KBG40ZNV512G L57448 NVMe PCIe 3.0 Solid State Drive for Dell HP Lenovo Laptop Desktop Ultrabook is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
Related SSDs & Storage
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- Best Retro Handhelds in 2026 — From $35 to $500
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- How to Build a Windows 98 Retro PC in 2026
- Best 1440p Gaming GPUs in 2026
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
More reviews from the SpecPicks archive
Browse all reviews →- CompactFlash + IDE Storage for a Period-Correct Windows 98 Build
- SteamOS Boots on Intel Hardware After Community Port
- Do Wireless Keyboards Work in BIOS? Building a Homelab Crash Cart in 2026
- Best Budget Gaming PC Build 2026: AMD Parts Guide
- Best AMD GPU for 4K Gaming in 2026
- Best Wired Controller for Fighting Games on PC (2026)
- How to run Llama 3.1 70B on NVIDIA GeForce RTX 5070
- Best USB-C Capture and Streaming Gear for Console + PC Creators (2026)
- Best Budget 1080p Gaming PC Parts in 2026: 5 Picks
- Best Storage for a Retro PC Build in 2026
- Intel Arc A770 LLM Performance: Local Inference Guide
- Best Mechanical Keyboard for Office and Gaming Crossover (2026)
- This Retro Switch 2 Dock Looks Exactly Like an N64 — and Holds Six Cards
- Best Streaming Gear for New Creators in 2026
- Which Ryzen CPU Is Better? 2026 Buying Guide
- Ryzen 7 9800X3D vs 7800X3D upgrade guide
- Is My GPU Dying? 5 Warning Signs to Check Now
- Microsoft Now Points to 32GB RAM for Windows 11 Gaming
- Best SATA SSD to Revive an Old Laptop: Crucial BX500 vs Samsung 870 EVO
- Meta Muse Spark 1.1 Hits 51 on the Intelligence Index: The Local Angle
- Best GPU Under $400 for Llama-Class 8B Models in 2026
- A Practical Look at the PlayStation Architecture — and Why It Still Matters
- Best Budget 4K Monitor for an RTX 3060 Build in 2026: SANSUI vs KOORUI vs ASUS TUF
- Self-Hosted Jellyfin on a Raspberry Pi 4 8GB: What 1080p Transcoding Really Costs
Earliest SpecPicks reviews
Browse full archive →- Best GPU for Llama 3.1 8B (2026)
- Best GPU for Qwen 3 14B (2026)
- Best GPU for Qwen 3 32B (2026)
- Best GPU for Llama 3.1 70B (2026)
- Best GPU for DeepSeek-R1 32B (2026)
- Best GPU for Llama 3.1 405B (2026)
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 14B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 70B on NVIDIA GeForce RTX 5090
- How to run DeepSeek-R1 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 4090