CPU:
Echo One: Intel i486DX2 -> Intel Celeron 1200MHz -> AMD Duron 1600MHz -> AMD Athlon XP 2000+ -> Intel Pentium D 805 -> Intel Pentium DualCore E2140
Echo Two: Intel Celeron 900 -> AMD Athlon XP 2600+ -> Intel Pentium4HT 2800MHz

Alaplap:
Echo One: valami Tomato -> Mercury KOB PLE133 -> ASRock K7S8X -> Asus A7N8X-X -> Abit AN7 -> Abit IL8 -> Abit AW9D
Echo Two: Abit BX133-RAID -> Abit AN7 -> Asus P4P800-VM

RAM:
Echo One: 4x4MB EDO -> 1x128MB/133 SD -> 1x256/333 DDR -> 2x256/333 DDR -> 2x256/333+512/400 DDR -> 2x512/400 DDR -> 1x512/667 DDR2 -> 2x512/667 DDR2 -> 2x1GB/800 DDR2 -> 2x2GB/800 DDR2
Echo Two: 3x64MB/100 SD -> 512MB/400 DDR -> 256+512/400 DDR

VGA:
Echo One: valami nem tudom milyen, de megvan még, 512kB, ISA-s -> S3 Trio3D PCI -> integrált a Mercury lapon 8MB -> Apollo GeForce FX5200 128MB/64bit AGP -> Inno3D GeForce 6600 256MB/128bit AGP -> Asus GeForce 6200 128MB/64bit AGP -> Gigabyte GeForce 7300GS 128MB/64bit PCI-E -> MSI GeForce 7900GTO 512MB/256bit PCI-E
Echo Two: Hercules GeForce2MX 32MB/128bit AGP -> Inno3D GeForce FX5200 128MB/128bit

HDD:
Echo One: 400MB Quantum Fireball -> 20GB Seagate -> 40GB Maxtor -> 40GB Maxtor + 80GB Maxtor -> 40GB Maxtor + 80GB Maxtor + 80GB Samsung SATA -> 200GB Maxtor SATA + 80GB Samsung SATA -> 500GB Samsung SATA + 80GB Samsung SATA -> 500GB Samsung SATA + 250GB Samsung SATA
Echo Two: 40+40+80GB Maxtor

Monitor:
Echo One: Samtron, kicsi, feketefehér -> IBM g42 14" CRT -> LG 500E 15" CRT -> Dell D2128-TCO 21" CRT -> LG 900B 19" CRT -> LG L1918S 19" TFT
Echo Two: IBM g42 14" CRT -> Samsung 15" CRT -> LG 900B 19" CRT