* [https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiNarOVf0Ylzr1ZYVNHBcjTYQP-Juexlj0ptBVLKkMeL1lHXtT-AeeXOeFTRaEezGkFR_L3DtLvCJCAoPK5tObyMxlfHpBZJ0zUKvN70Tul7LV9r19ynndlB84tL5iuagKcoe4OoeCrP5dk2PTXpIXGzVb02Fbz2hibvElxbxvzm_z6XSLjCA_d_k3YrQ/s5910/RM%20PC286_386_4MB_AOR.jpg RM PC286/386 /4MB AOR Card]
* [https://www.ardent-tool.com/SCSI/MCS.html#MCS-600_700 IBM Fast SCSI-2 Adapter/A]
* [https://ardent-tool.com/memory/IBM_Expansion.html#1_8MB IBM Expanded Memory Adapter 0-8MB XMA] - increased to a total of [https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkDp6eqiXqIvkltGEDlZ8jCRu56KBfx2iTjWi7mBtHq-MuFFCYGwbR4CaqmdqW-_yFCe-0oGhxX0-lfIAKlg-swqq4CJBW3yWx0dzsUC8XPAXw-gW3UF3fzxI3sn0WpKvrgOz3I1dEzEWaErOAXeg0VTT9VaGH17lS18yXQkd9xz6YfC3AwUGGo0uHnw/s4000/IMG_20221024_155807.jpg 13,824 KB - 13.5MB] from [https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQHjAlkatU2b6z9Qvhy7GI0c9hRTsji7WPeBb4JBd7es18L3oiQhiNa02BZJ0IHcrGrfWfIIOol4WGzGu2TIhDu3nHU-yAZF4zQEaCphwiYWTwGHsHCcroF53nYDBA2qa6L_Rz9l-UvCLQQHWR_xQfpgX8HrQhb3x1a7HzQ6CLKDxu6RoBwWfPrYiyHw/s3966/IBM%20Memory%20Adapter.jpg IBM Expanded Memory: 7.5MB] (1.5MB installed using 6 x [https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw=OKI+MSC2304-12YS9A&_sacat=0&LH_TitleDesc=0&_odkw=OKI+MSC2304-15YS9A&_osacat=0&_sop=15&LH_PrefLoc=2 OKI MSC2304-12YS9A] * [https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiNarOVf0Ylzr1ZYVNHBcjTYQP-Juexlj0ptBVLKkMeL1lHXtT-AeeXOeFTRaEezGkFR_L3DtLvCJCAoPK5tObyMxlfHpBZJ0zUKvN70Tul7LV9r19ynndlB84tL5iuagKcoe4OoeCrP5dk2PTXpIXGzVb02Fbz2hibvElxbxvzm_z6XSLjCA_d_k3YrQ/s5910/RM%20PC286_386_4MB_AOR.jpg RM PC286/386 /4MB AOR Card] + & 1MB onboard) + [https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiNarOVf0Ylzr1ZYVNHBcjTYQP-Juexlj0ptBVLKkMeL1lHXtT-AeeXOeFTRaEezGkFR_L3DtLvCJCAoPK5tObyMxlfHpBZJ0zUKvN70Tul7LV9r19ynndlB84tL5iuagKcoe4OoeCrP5dk2PTXpIXGzVb02Fbz2hibvElxbxvzm_z6XSLjCA_d_k3YrQ/s5910/RM%20PC286_386_4MB_AOR.jpg RM PC286/386 /4MB AOR Card] + 2MB onboard
* [https://www.ardent-tool.com/NIC/3c523.html#Late_3C523 3COM 3C523 ETHERLINK/MC ETHERNET MCA MICRO CHANNEL ADAPTER MCA-II Network card] - [https://www.ardent-tool.com/NIC/3c523c_Photo_Front.jpg newer revision (Late version)]
* Maxell ER6K Lithium 3.6V Battery replaced with [https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2047675.m570.l1313&_nkw=ACORN+BBC+MASTER+128+NEW+REPLACEMENT+LITHIUM+LONG+LIFE+CMOS+RTC+BATTERY+PACK&_sacat=0 LITHIUM LONG LIFE CMOS RTC BATTERY PACK]