External Hard Drive sales [updated]

Barring material shortages or geopolitical issues, the price of storage will keep on dropping, so one has to triangulate how much to buy now versus how much to buy later. I will leave the triangulations to you (because my geometrics is broken), but here are three more portable hard disk drive promotions in progress at the moment:

+ 4TB WD Elements External Desktop Hard Disk Drive, model WDBWLG0040HBK-NESN, for $109 at B&H Photo

+ expired:
+ 3TB Toshiba Canvio Connect II, black, model HDTC830XK3C1, for $100 at Amazon by Amazon herself, limit five per customer
+ 3TB WD My Passport Ultra USB 3.0 Portable External Hard Drive, 256-bit Hardware Encryption, Classic Black (2015), for $109 at Adorama, temporarily back-ordered but can still place an order to lock the price

For more action, check our previous hard drive deals posts.

UPDATE: more added
A few more offers went live since the original post, here they are:

+ 4TB Seagate Backup Plus Portable Hard Drive for $150, model STDR4000100, at B&H Photo

+ 4TB LaCie Rugged Mini Portable Hard Drive for $200 with coupon code AESBH15 at B&H Photo

+ 2TB Technology G-Drive Pro with Thunderbolt for $520 with 4% promotional rewards at B&H Photo
+ more G-Technology HDDs with 5% rewards with coupon AESBH15