Gongtian F95D Mini Fan Teardown & Analysis — Circuit Analysis of a Portable Rechargeable Fan
A teardown and circuit analysis of the Gongtian F95D portable mini fan reveals a 4-speed design with 18W fast charging, a 5000mAh 21700 battery, and USB-C power-bank output. Core components include the IP5353 charge-management SoC, an MCU, MOSFET PWM speed control, and protection circuitry. Measured speeds range from 1565 to 4695 RPM with 19.9kHz PWM.
Ugreen DXP4800Pro NAS Unboxing, Review, and Teardown — 4-Bay NAS, i3-1315U, Storage Server
The article is a detailed unboxing, review, and teardown of the Ugreen DXP4800Pro 4-bay NAS, powered by an Intel i3-1315U. The author upgraded from a QNAP NAS, citing UGOS Pro's open, customizable Debian-based system and superior hardware value. Key specifications include dual network ports (10GbE and 2.5GbE), HDMI 2.1, USB 3.2 Gen2, SD slot, two M.2 PCIe Gen4 slots, and dual DDR5 memory slots. The teardown reveals quality engineering: ASMedia SATA controllers, per-drive power switching, an IT8613E management controller, a substantial CPU power delivery system, an Intel I226-V 2.5GbE controller, and a dedicated 10GbE controller with heatsink. Performance testing showed 9.38Gbps LAN throughput and Unixbench scores of 1652 single-core and 8859 multi-core. The review highlights useful features: Docker support, AI-powered photo recognition, integrated media scraping, snapshots, and effective remote relay access. However, shortcomings are documented: immature virtual machines, inability to benchmark drives already in storage pools, limited cloud-drive integration, restrictive Baidu sync, missing VLAN support, and limited DDNS flexibility. The article provides practical insight for prospective NAS buyers evaluating hardware quality, software maturity, and upgradeability.
Quick Unboxing & Review of 5G CPE NRadio C2000MAX
The NRadio C2000MAX is a compact 5G-A CPE with WiFi 7 BE3600, a 2.5G port, and dual nano-SIM slots plus built-in eSIM. Speed tests reached 346Mbps on China Telecom and 358Mbps on China Mobile, comparable to flagship phones. Idle power draw is 4.6W, rising to 9.5W under load. A 1TB monthly data plan costs 599 RMB annually. It supports OpenWrt and offers advanced SIM, band, and cell locking controls.
ZTE F40 5G Portable Wi-Fi: A Quick Unboxing and Review
The ZTE F40 is a compact 5G RedCap portable Wi-Fi with a USB-drive design, Wi-Fi 6, and up to 16 device connections. It offers dual built-in eSIMs plus a physical SIM slot. Real-world tests showed Telecom 5G download speeds of 41Mbps and uploads of 79Mbps, while Mobile 5G reached 22.7Mbps downlink. Power consumption was notably low at 0.9W idle and 2.4W under load. The web interface includes band locking and SIM switching. With a 1.5TB monthly data plan at roughly 58 RMB per month, it provides cost-effective, low-power 5G connectivity.
OWON HDS160 Oscilloscope Multimeter: Unboxing, Review, and Teardown
The article presents a hands-on unboxing, review, and teardown of the OWON HDS160, a 4½-digit handheld oscilloscope multimeter purchased for 365 RMB. Its main appeal is the built-in 1 MHz oscilloscope that works with standard multimeter test leads, enabling direct voltage or current waveform measurement and automatic detection of the input jack to switch ranges. Key specifications include 60000-count display, DC voltage accuracy of ±(0.05%+5 digits), CAT III 1000 V safety rating, 2.8-inch IPS screen, and a single 18650 battery. Field tests cover USB voltage, AC mains waveform (50 Hz, 328 V peak, 232 V RMS), STM32 board inrush current, and low-power current measurements. The teardown reveals an HC32F460PETB MCU, HY3131 multimeter front-end, MAX6006AESA voltage reference, SGM41511 charger, GD25Q128ESIG flash memory, and infrared components for jack detection. The author notes a slightly crooked Type-C port and a clock that resets when the battery is removed. Readers gain insight into the device’s capabilities, component choices, internal construction, and practical limitations, useful for evaluating its suitability for low-frequency electrical and embedded debugging tasks.
BenQ RD280U Review: 28" 4K 3:2 Professional Programming Monitor
The BenQ RD280U is a 28.2-inch 4K programming monitor with a 3:2 aspect ratio, showing about 20% more lines than typical 16:9 displays. It offers dedicated coding modes, KVM switching, 90W USB-C power delivery, and MST daisy-chaining. Hardware low blue light and MoonHalo ambient lighting aim to reduce eye strain. Measured sRGB coverage was 96.2% with average Delta E 2.23, though blue accuracy is limited. The monitor is well-suited for programmers wanting multitasking efficiency, multi-device control, and long-session comfort.
DJI Mini 2 Drone Teardown Analysis
这篇摘要总结了作者对使用四年的DJI Mini 2无人机进行拆解和问题分析的全过程，字数控制在200字以内。 --- 一篇关于大疆Mini 2无人机的拆解分析文章。作者因无人机5.8GHz图传信号变弱，在过保后决定自行拆机维修。文章详细记录了拆解步骤，并对关键芯片进行了技术分析：主控采用NXP的i.MX RT1064处理器；图像处理由安霸Ambarella H22芯片负责；图传系统核心为DJI定制的S1系列芯片，并由QPF4205和QPF4550分别放大2.4GHz和5.8GHz信号（怀疑故障源于后者）；此外，还解析了电机驱动、电源管理及ToF测距等模块的芯片配置与功能。此次拆解旨在排查并更换故障的5.8G功放芯片，修复图传问题。
GL-RM1PE Unboxing, Review, and Teardown: Enabling BMC Remote Management on a Regular PC
A simple unboxing, review, and teardown of the GL-RM1PE and the FGB-01 Finger Robot, enabling BMC-style remote management on a regular PC. Review vide
GEIL DDR5 5600MHz 32GB Laptop Memory Module Simple Unboxing & Review
The article reviews GEIL Millennium DDR5 5600MHz 64GB laptop memory, a SO-DIMM kit with CL46 timing and 1.1V voltage. It uses CXMT DRAM chips from 2025. AIDA64 benchmarks show read speed 79GB/s, write 81GB/s, and latency 112.7ns. Purchased for 1158 RMB, it serves as a straightforward laptop RAM upgrade option.
MECHREVO Code10 AI Laptop (Ultra7-255H) – Unboxing, Review, and Teardown
Review of MECHREVO Code10 AI laptop (Ultra7-255H, 32GB) covering unboxing, benchmarks, and teardown. It delivers solid performance: CPU-Z single 833.9/multi 10223.9, Cinebench R23 21378, SSD read 4598 MB/s. The 15.3-inch 120Hz display has good color accuracy after calibration; keyboard and speakers are improved, but the laptop is heavier and the camera is poor. Includes 99.9Wh battery, dual M.2 slots, 140W GaN charger, and Thunderbolt 4. Preinstalled CodeGeeX AI assistant could not run due to memory allocation. Value reduced by absence of Guangdong subsidy.
Review: An 88,000-yuan Server, Intel Xeon 6980P – A 128-core, 256-thread Performance Beast
This article benchmarks a custom 88,000 RMB bare-metal server built by Haoliang Cloud Engine, powered by Intel Xeon 6980P with 128 cores, 256 threads, and 256GB DDR5. CPU-Z multi-core scored 84,800, Cinebench R23 multi-core 86,395, memory read reached 281GB/s, and RAID1 SSD sequential read hit 3,852MB/s. Designed for AI, HPC, and data-intensive workloads, it demonstrates extreme core density and memory bandwidth.
Disassembly and Circuit Design Analysis of ZGRL-80 Photography Light
The article details a teardown of the ZGRL-80 fill light, revealing false advertising: it lacks PD fast charging despite claims, drawing under 10W via Type-C, and its 80W rating is exaggerated with LEDs consuming about 40W. The analysis covers internal circuitry, battery configuration, and thermal imaging, helping readers identify misleading specs and understand budget device limitations.
Unboxing and Simple Review of AMD Ryzen 9 9950X and MSI B850M-MORTAR-WIFI Motherboard
An upgrade to AMD Ryzen 9 9950X and MSI B850M MORTAR WIFI was tested, replacing an Ultra7-265K system that had random crashes. The board features WiFi 7 (FastConnect 7800), two PCIe 5.0 x4 M.2 slots, USB 20Gbps Type-C, and 5Gbps Ethernet. Benchmarks show the 9950X outperforming the 265K by about 20% in Cinebench R23/R15 and Ludashi, while CPU-Z and Geekbench results are close. Integrated graphics are considerably weaker. Power draw ranges from 135W idle to 511W under dual load. The 265K offers better price-to-performance for productivity; the 9950X runs hotter and is harder to cool.
Ultra7-265K & Gigabyte Z890M-AORUS-ELITE-WIFI7 Motherboard - Quick Unboxing Review
Intel Ultra7 265K paired with Gigabyte Z890M AORUS ELITE WIFI7 Motherboard and Asgard DDR5 6400MHz 64GB Memory (32GB x 2) - Quick unboxing review. Pur
Dockcase Smart Display Magsafe SSD Enclosure Unboxing&Review, DSWC1R-3S, ProRes External Recording
DOCKCASE DSWC1R-3S Smart Display Magnetic Hard Drive Enclosure - Unboxing & Review | MagSafe External Storage for iPhone, ProRes Video Recording, Scre