Kioxia SSD 512GB M.2 2230 30mm NVMe PCIe Gen3 x4 BG4 Solid State Drive
Bottom line: The Kioxia SSD 512GB M.2 2230 30mm NVMe PCIe Gen3 x4 BG4 Solid State Drive 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 M.2 2230 30mm NVMe PCIe Gen3 x4 KBG40ZNS512G BG4 Solid State Drive for Surface Pro Steam Deck Dell HP Lenovo Ultrabook Tablet
SpecPicks Verdict
SpecPicks scored Kioxia SSD 512GB M.2 2230 30mm NVMe PCIe Gen3 x4 BG4 Solid State Drive 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, NVMe PCIe Gen3 x4
- Compatibility: Surface Pro, Surface, Steam Deck and other systems with M.2 2230 NVMe PCIe slot
Full Specifications
| Brand | KIOXIA |
|---|---|
| Color | Black |
| Weight | 512g |
| Model Name | Kioxia BG4 Series |
| Read Speed | 2200 megabytes_per_second |
| Form Factor | M2 |
| Media Speed | 1400 megabits_per_second |
| Model Number | KBG40ZNS512G |
| Compatibility | Surface Pro, Surface, Steam Deck and other systems with M.2 2230 NVMe PCIe slot |
| Built-In Media | SSD |
| Hard-Drive Size | 512 GB |
| Mfr Part Number | KBG40ZNS512G |
| Number of Items | 1 |
| Special Feature | Portable |
| Installation Type | Internal Hard Drive |
| Compatible Devices | Tablet |
| Data Transfer Rate | 2299 megabytes_per_second |
| Enclosure Material | Nand |
| Additional Features | Portable |
| Hard Disk Interface | PCIE x 4 |
| Full listing title | Kioxia SSD 512GB M.2 2230 30mm NVMe PCIe Gen3 x4 KBG40ZNS512G BG4 Solid State Drive for Surface Pro Steam Deck Dell HP Lenovo Ultrabook Tablet |
Ready to buy?
Kioxia SSD 512GB M.2 2230 30mm NVMe PCIe Gen3 x4 KBG40ZNS512G BG4 Solid State Drive for Surface Pro Steam Deck Dell HP Lenovo Ultrabook Tablet 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 →- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- Best 1440p Gaming GPUs in 2026
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- Best Retro Handhelds in 2026 — From $35 to $500
- How to Build a Windows 98 Retro PC in 2026
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
More reviews from the SpecPicks archive
Browse all reviews →- Local AI Video After Seedance 2.5: What GPU Generates 30-Second Clips
- No Wonder My CPU Was Hitting 100°C: 7 Build Mistakes
- Pi Pico Puts Bluetooth Keyboards on the I2C Bus
- OpenAI and Broadcom Unveil 'Jalapeño' Inference Chip
- 16GB vs 32GB RAM for Windows 11 Gaming in 2026
- Best Mini-ITX Case for a Small Form Factor Gaming PC in 2026
- Best SSD for a Raspberry Pi 4 Media Server in 2026
- News: ChatGPT Now Listens and Talks at Once
- DIY Pinball Controller for Retro Gaming: Build Guide
- Best Monitor Deals for Prime Big Deal Days 2026: 5 Picks for Gaming and AI Desks
- Prompt Injection Still Breaks Local AI Agents in 2026
- Voodoo 5 6000 Lab Method: Two Motherboards, One Dead BIOS
- Troubleshooting Ryzen 7 5800X Memory Training, Boot Loops, and Cold-Start Hangs on B550 in 2026
- Best 4K Monitor for Reviewing AI-Generated Images on an RTX 3060
- Best Budget AM4 Build for Local LLM Inference in 2026
- OpenAI Says GPT-5.5-Cyber Beats Anthropic's Mythos on Security
- Four Frontier Models in Eight Days: What a 12GB RTX 3060 Can Actually Run
- Best Sim Racing Wheel Under $300 in 2026: Force Feedback That's Worth It
- Best Streaming Gear for New Creators in 2026
- Kimi K3 Lands #5 on Coding Agents: What You Can Actually Run Local
- Best Budget Gaming Monitors Under $300 for 1080p in 2026
- Build a Raspberry Pi 4 Cyberdeck Music Workstation in 2026
- Can You Run Kimi K3 Locally? VRAM Math for the New Open Model
- Building a Period-Correct 1999 Quake III Arena LAN Rig: Voodoo3, Pentium III, and Win98 SE
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