Has it got a PCMCIA Express slot ?
-- PCNetSpec
Thanks, PCNetSpec. Heck if I know. But if a picture is worth a thousand words, here is what it looks like. But you got to click onto the picture 6 times to see what I'm looking at here. Sorry.
https://www.ebay.com/itm/Toshiba-Satellite-C70D-A-17-3-Laptop-i3-3120M-2-50GHz-750GB-HDD-8GB-Ram-DVD-RW/153525516897?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160908103841%26meid%3Da4c75560fc9143d681c6d05eb5bbd8cd%26pid%3D100227%26rk%3D1%26rkt%3D10%26sd%3D153525516897%26itm%3D153525516897&_trksid=p2054502.c100227.m3827
Which model of Satellite ?
Satellite C70-A
And, just in case, here's its inxi -Fz too!
Spoiler (click here to view / hide)
perknh@peppermint ~ $ inxi -Fz
System: Host: peppermint Kernel: 4.18.0-25-generic x86_64 bits: 64 Desktop: N/A
Distro: Peppermint Ten
Machine: Device: laptop System: TOSHIBA product: Satellite C70-A v: PSCE2U-03E00S serial: N/A
Mobo: Type2 - Board Vendor Name1 model: Type2 - Board Product Name1 v: Type2 - Board Version serial: N/A
UEFI [Legacy]: Insyde v: 1.30 date: 04/18/2014
Battery hidpp__1: charge: N/A condition: NA/NA Wh
CPU: Dual core Intel Pentium 2020M (-MCP-) cache: 2048 KB
clock speeds: max: 2400 MHz 1: 1197 MHz 2: 1197 MHz
Graphics: Card: Intel 3rd Gen Core processor Graphics Controller
Display Server: x11 (X.Org 1.20.1 )
drivers: modesetting (unloaded: fbdev,vesa)
Resolution: 1600x900@60.01hz
OpenGL: renderer: Mesa DRI Intel Ivybridge Mobile
version: 4.2 Mesa 18.2.8
Audio: Card Intel 7 Series/C216 Family High Def. Audio Controller
driver: snd_hda_intel
Sound: Advanced Linux Sound Architecture v: k4.18.0-25-generic
Network: Card-1: Realtek RTL8188EE Wireless Network Adapter driver: rtl8188ee
IF: wlp2s0 state: down mac: <filter>
Card-2: Qualcomm Atheros AR8162 Fast Ethernet driver: alx
IF: enp3s0 state: up speed: 100 Mbps duplex: full mac: <filter>
Drives: HDD Total Size: 360.1GB (5.6% used)
ID-1: /dev/sda model: PNY_CS1311_240GB size: 240.1GB
ID-2: USB /dev/sdb model: 2105 size: 120.0GB
Partition: ID-1: / size: 110G used: 19G (18%) fs: ext4 dev: /dev/sdb1
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 48.0C mobo: N/A
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 169 Uptime: 6 min Memory: 676.6/5854.9MB
Client: Shell (bash) inxi: 2.3.56
perknh@peppermint ~ $
If not, I'm sure the Chinese will sell you a USB 2.0 --> USB 3.0 adapter 
-- PCNetSpec
Good one!! I'll only believe it if and when I see a blue piece of plastic inside!
Off topic:
Installed Peppermint 10 onto an HP Stream tonight. Firefox's default search engine was Google. I didn't see Peppermint DDG anywhere. I added it though through perknhs-personal-startpage. Thought you should know. Might be a one-off install, who knows? Chromium, incidentally, has no such issue.