Rock 4D: Excellent Arm SBC with PCIe connector

ExplainingComputers • August 10, 2025

ExplainingComputers

About

Weekly videos on computing and related topics. ExplainingComputers is produced and presented by Christopher Barnatt, who spent 25 years teaching computing and future studies in the University of Nottingham, and who is the author of thirteen books including "Digital Genesis: The Future of Computing, Robots and AI", "3D Printing: Third Edition" and "The Next Big Thing". If you are looking for hardware that I use in my videos, I have created Amazon Storefronts (US & UK) that are linked below. Please note that as an Amazon Associate I earn a commission from any qualifying purchases you may make. Please note that the e-mail address below really is for business enquiries only. If you want to contact me on another matter, please do so via a video comment. Due to the volume of communications I receive, I cannot offer a technical support service via e-mail.

Rock 4D: Excellent Arm SBC with PCIe connector

ExplainingComputers

About

Latest Posts

Channel Update December 2025: SBCs, PCs, Windows, Linux & AI

FreeBSD: The Really Alternative Desktop OS

Storage Media Life Expectancy: SSDs, HDDs & More!

Explaining Display Connectors: HDMI, DisplayPort, USB-C, DVI, VGA & Thunderbolt

You May Also Like

Upgrade Your Computing Power

10.1 Inch Touch Portable Monitor IPS Screen 1366x768P 60Hz 400 Brightness 99% sRGB HDMI USB-C Monitors Switch for Xbox PS3/4/5 Laptop Compatible with Raspberry Pi, Mini Touch Screen

ELECROW 8 Inch Portable Monitor, 1280x800 Mini HD Display with Built-in Speakers, USB Powered, Non-Touch LCD Screen for Raspberry Pi, PC, Laptop, Jetson Nano, Game Consoles

7 Inch Portable Monitor Touchscreen HD 1024x600 LED Display Dual HDMI Port Small Monitor for PC Raspberry Pi Laptop Computer Xbox PS4/5 Switch Built-in Speakers

BrosTrend 1800Mbps WiFi 6 Linux WiFi Adapter for PC and Raspberry Pi 2+, Long Range USB WiFi Dongle Linux for Ubuntu, Mint, Debian, Kubuntu, Lubuntu, Zorin, Windows 11/10, Dual Band Wireless Antenna

RAOYI 5pcs 32GB USB 3.0 Flash Drive Memory Stick Fold Storage Thumb Stick Pen Drive U Disk Swivel Design (5 Mixed Colors: Black Red Blue Green Purple)

Anker USB C Charger Cable (6ft 100W, 2Pack), USB 2.0 Type C Fast Charging Cable for iPhone 15 / 15Pro / 15Plus / 15ProMax MacBook Pro 2020, iPad Pro 2020, iPad Air 4, Samsung Galaxy S23+/S23 Ultra ClimatePartner certified

Anker USB C Cable, [2-Pack, 6 ft] Type C Charger Premium Nylon USB Cable, USB A to Type C Charging Cable Fast Charge for Samsung Galaxy S10 S10+ / Note 8, LG V20 and Other USB C Charger (Black)

Samsung 990 EVO Plus - 4TB PCIe Gen4. X4, Gen5. X2 NVMe 2.0 - M.2 Internal SSD, Speed Up to 7,250 MBs, Upgrade Storage for PC-Laptops, HMB Technology and Intelligent Turbowrite (MZ-V9S4T0B/AM)

SAMSUNG 870 EVO SATA SSD 500GB 2.5” Internal Solid State Drive, Upgrade PC or Laptop Memory and Storage for IT Pros, Creators, Everyday Users, MZ-77E500B/AM [Canada Version]

SAMSUNG 870 EVO SATA III SSD 4TB 2.5” Internal Solid State Drive, Upgrade PC or Laptop Memory and Storage for IT Pros, Creators, Everyday Users, MZ-77E4T0B/AM [Canada Version]

SAMSUNG 990 PRO SSD 4TB PCIe Gen4 NVMe M.2 Internal Solid State Hard Drive, Up to 7,450MB/s, Heat Control, Direct Storage and Memory Expansion, MZ-V9P4T0B/AM [Canada Version]

Crucial T705 4TB PCIe Gen5 NVMe M.2 SSD - Up to 14,100 MB/s - Game Ready - Internal Solid State Drive (PC) - +1mo Adobe CC - CT4000T705SSD3

Crucial X9 4TB Portable SSD, Up to 1050MB/s, USB 3.2 USB-C, External Solid State Drive, Compatible with Windows, Mac, &amp; Android, Reliable Storage for Games, Files, &amp; Backups, Black - CT4000X9SSD902

Crucial X10 Pro 4TB Portable SSD, Up to 2100MB/s Read, 2000MB/s Write, 3.2 USB-C, External Solid State Drive, Durable Storage for PC &amp; Mac, for Professional Creators, Black - ‎CT4000X10PROSSD902

Crucial X9 Pro 4TB Portable SSD, Up to 1050MB/s Read &amp; Write, 3.2 USB-C, External Solid State Drive, Durable Storage for PC and Mac, for Professional Creators, Silver - ‎CT4000X9PROSSD902

GMKtec Mini PC Intel Core i5-12450H 16GB DDR4 1TB M.2 SSD Dual-Channel 4k Dual Display Desktop Mini Computers

GMKtec Mini PC NAS, G9 N150 Dual Boot Win Linux Desktop Computer 12GB DDR5 64GB EMMC + 1TB M.2 SSD, 4*M.2 NVMe Slots, Dual NIC 2.5GbE, USB-C/USB 3.2 10Gbps, Network Attached Storage

DreamQuest Mini Desktop Computer Windows 11 Pro Preinstalled, Intel 12th N95 (up to 3.4GHz) Mini Pc with 32GB RAM 1TB M.2 SSD, USB3.2, BT4.2,WiFi 5,4k HDMI, Gigabit Port for Home Office

KAMRUI Mini PC W-11 Pro, 16GB RAM 1TB M.2 SSD, Mini Computers with 12 Gen Ν95 Processor (up to 3.4GHz), Mini Desktop Computers Support 2.5&quot; SSD/WiFi/BT/Dual 4k Display

Dell P2725H 27&quot; Full HD 1920 x 1080 Monitor - 1 Year Warranty, Computer Monitor Screen Bundle with Power Cable + USB 3.0 Upstream Cable + Display Port Cable + HDMI Cable + Microfiber Cloth Included

Dell P2425H Computer Monitor Screen 24&quot; 16:9 IPS Display 100Hz w/Stand - 1 Year Warranty, Full HD, 1920 x 1080 with Power Cord + DisplayPort Cable + HDMI Cable + USB 3.0 Cable + Microfiber Cloth

Acer PM161Q Bbmiuux 15.6&quot; Full HD (1920 x 1080) Widescreen Portable IPS Display | AMD FreeSync Technology | 4ms (G to G) | 2 Speakers | USB Type-C Cable and Mini HDMI Cable

Acer EDA270U Pbmiipx 27" WQHD (2560 x 1440) 1500R Curved Widescreen Gaming Display | AMD FreeSync Premium | 1ms (VRB) | up to 170Hz Refresh | HDR 10 | 2 Speakers | Display Port and HDMI Cable Incl.

Thermalright Aqua Elite 240 V3 Liquid CPU Cooler, 240 Cooling Row Size, 2 x 120mm PWM Fans, S-FDB Bearings,for AMD/AM4/AM5, Intel LGA1150/1151/1155/1156/1200/2011/1700,Desktop CPU Cooler AIO

Loading...

Crucial X9 4TB Portable SSD, Up to 1050MB/s, USB 3.2 USB-C, External Solid State Drive, Compatible with Windows, Mac, & Android, Reliable Storage for Games, Files, & Backups, Black - CT4000X9SSD902

Crucial X10 Pro 4TB Portable SSD, Up to 2100MB/s Read, 2000MB/s Write, 3.2 USB-C, External Solid State Drive, Durable Storage for PC & Mac, for Professional Creators, Black - ‎CT4000X10PROSSD902

Crucial X9 Pro 4TB Portable SSD, Up to 1050MB/s Read & Write, 3.2 USB-C, External Solid State Drive, Durable Storage for PC and Mac, for Professional Creators, Silver - ‎CT4000X9PROSSD902

KAMRUI Mini PC W-11 Pro, 16GB RAM 1TB M.2 SSD, Mini Computers with 12 Gen Ν95 Processor (up to 3.4GHz), Mini Desktop Computers Support 2.5" SSD/WiFi/BT/Dual 4k Display

Dell P2725H 27" Full HD 1920 x 1080 Monitor - 1 Year Warranty, Computer Monitor Screen Bundle with Power Cable + USB 3.0 Upstream Cable + Display Port Cable + HDMI Cable + Microfiber Cloth Included

Dell P2425H Computer Monitor Screen 24" 16:9 IPS Display 100Hz w/Stand - 1 Year Warranty, Full HD, 1920 x 1080 with Power Cord + DisplayPort Cable + HDMI Cable + USB 3.0 Cable + Microfiber Cloth

Acer PM161Q Bbmiuux 15.6" Full HD (1920 x 1080) Widescreen Portable IPS Display | AMD FreeSync Technology | 4ms (G to G) | 2 Speakers | USB Type-C Cable and Mini HDMI Cable