256MB RAM Memory for IBM ThinkPad T21 2647-8AU Black Diamond Memory Module SDRAM SO-DIMM 144pin PC100 100MHz Upgrade System Specific Memory - Newegg.com
T20 | IBM Wiki | Fandom
Lenovo IBM/lenovo T21, 0,75 GHz, 128MB GB ram – dba.dk – Køb og Salg af Nyt og Brugt
256MB Memory for IBM ThinkPad T21 2647-4AU PC100 SDRAM 144 pin SO-DIMM Laptop Notebook RAM (PARTS-QUICK Brand) at Amazon.com
T21 | IBM Wiki | Fandom
18yo T21 still running : r/thinkpad
OFFTEK 128MB Replacement Memory RAM Upgrade for IBM-Lenovo ThinkPad T21 (2647-xxx) (PC100) Laptop Memory at Amazon.com
ThinkPad T series - Wikipedia
T21 with slashed screen? : r/thinkpad
IBM ThinkPad T21 LAPTOP PENTIUM III 256MB, 18GB HDD DVD WINDOWS 98 OFFICE 2000 | eBay
IBM THINKPAD T21 E T20 di seconda mano per 40 EUR su Madrid su WALLAPOP